Alright I'll be as detailed as I can here.What would the best nature and abilitys be and the ivs or evs for these pokemon rapidash nature is adament with the ability pastel veil then hawlucha which nature is lonely and then the ability is unburden then bisharp nature is naive woth ability of inner focus then normal rotom nature is modest and ability is levitate then a piakchu with modest nature and anility is static and riolu with serious nature with ability of steqdfest and all of em are amazing stats the rapidash only stat that needs to be worked on is sp. Atk then hawlucha stat that needs work on is defense and sp. Atk and bisharp is sp. Def and rotom is speed and riolu needs its hp, defense sp. Atk, and speed
This is your current team, based on what you described:
Rapidash-Galar
Ability: Pastel Veil
Adamant Nature
Hawlucha
Ability: Unburden
Lonely Nature
Bisharp
Ability: Inner Focus
Naive Nature
Rotom
Ability: Levitate
Modest Nature
Pikachu
Ability: Static
Modest Nature
Riolu
Ability: Steadfast
Ability: Pastel Veil
Adamant Nature
Hawlucha
Ability: Unburden
Lonely Nature
Bisharp
Ability: Inner Focus
Naive Nature
Rotom
Ability: Levitate
Modest Nature
Pikachu
Ability: Static
Modest Nature
Riolu
Ability: Steadfast
I assume this is an in-game team so I did not include any EVs or IVs. Realistically there are stronger Pokemon to use in competitive battling but for the sake of your question I will try to make each individual Pokemon as viable as it can be. Rapidash is best off using a Jolly nature since the extra speed is helpful. Extra speed is almost always the way to go for a fast attacker. Hawlucha is an exception since Unburden will give it so much speed that an Adamant nature will be preferred. Bisharp can run either Jolly or Adamant; that depends on whether you prefer extra speed or extra power. Rotom will work fine with a Modest nature but Timid is also useful; once again, it depends whether you prefer speed or power. Pikachu is more difficult to address since it can run either physical or special sets, so for our purposes we can keep it Modest. The same applies to Riolu, but I would make it Jolly.
Next, I've built sets for each Pokemon (most of this comes from the on-site strategy pokedex) that will give you the optimal sets for the current meta. The abilities have been changed on some of them and the best EVs and IVs are listed. I've also made two additional versions of the team, the first being one with every one of your Pokemon fully-evolved, as they're better that way, and one with some of them changed out to make a team more suited for the current competitive scene.
You can copy/paste them into Pokemon Showdown so you can try them out online. I'm happy to answer any remaining questions.
Optimized recommendations:
Rapidash-Galar @ Life Orb
Ability: Pastel Veil
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Play Rough
- Zen Headbutt
- Low Kick
Hawlucha @ Electric Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom @ Choice Specs
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunder
- Volt Switch
- Shadow Ball
- Trick
Pikachu @ Light Ball
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Surf
- Grass Knot
- Electric Terrain
Riolu @ Life Orb
Ability: Prankster
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Swords Dance
- High Jump Kick
- Thunder Punch
- Earthquake
Ability: Pastel Veil
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Play Rough
- Zen Headbutt
- Low Kick
Hawlucha @ Electric Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom @ Choice Specs
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunder
- Volt Switch
- Shadow Ball
- Trick
Pikachu @ Light Ball
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Surf
- Grass Knot
- Electric Terrain
Riolu @ Life Orb
Ability: Prankster
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Swords Dance
- High Jump Kick
- Thunder Punch
- Earthquake
Optimized, fully evolved
Rapidash-Galar @ Life Orb
Ability: Pastel Veil
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Play Rough
- Zen Headbutt
- Low Kick
Hawlucha @ Electric Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom @ Choice Specs
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunder
- Volt Switch
- Shadow Ball
- Trick
Raichu @ Life Orb
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Thunderbolt
- Grass Knot
- Focus Blast
Lucario @ Life Orb
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Earthquake
- Bullet Punch
Ability: Pastel Veil
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Play Rough
- Zen Headbutt
- Low Kick
Hawlucha @ Electric Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom @ Choice Specs
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunder
- Volt Switch
- Shadow Ball
- Trick
Raichu @ Life Orb
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Thunderbolt
- Grass Knot
- Focus Blast
Lucario @ Life Orb
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Earthquake
- Bullet Punch
Optimized, meta-relevant
Indeedee (M) @ Terrain Extender
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Mystical Fire
- Hyper Voice
- Encore
Hawlucha @ Psychic Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Overheat
- Volt Switch
- Will-O-Wisp
Darmanitan-Galar @ Choice Scarf
Ability: Gorilla Tactics
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Icicle Crash
- U-turn
- Flare Blitz
- Earthquake
Lucario @ Life Orb
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Earthquake
- Bullet Punch
Note that Male Indeedee and Galarian Darmanitan are exclusive to Sword. If you want I can make something that works for Shield, unless you don't mind trading. Alternatively, you can leave the competitive stuff to Pokemon Showdown, since it's way easier than trying to do it all on the switch, and just have fun with your in-game team. That's usually what I do lol.
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Psychic
- Mystical Fire
- Hyper Voice
- Encore
Hawlucha @ Psychic Seed
Ability: Unburden
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Close Combat
- Throat Chop
- Acrobatics
Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Throat Chop
- Sucker Punch
- Iron Head
Rotom-Heat @ Heavy-Duty Boots
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Overheat
- Volt Switch
- Will-O-Wisp
Darmanitan-Galar @ Choice Scarf
Ability: Gorilla Tactics
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Icicle Crash
- U-turn
- Flare Blitz
- Earthquake
Lucario @ Life Orb
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Earthquake
- Bullet Punch
Note that Male Indeedee and Galarian Darmanitan are exclusive to Sword. If you want I can make something that works for Shield, unless you don't mind trading. Alternatively, you can leave the competitive stuff to Pokemon Showdown, since it's way easier than trying to do it all on the switch, and just have fun with your in-game team. That's usually what I do lol.