Just for fun... I wanna show the combinations of moves that are viable as linked moves (similar to showing what abilities are good in AAA) on the viability ranking just for fun, and to hopefully make the tier that much more accessible. (Only doing S to A- for now, might do B tier at a later time) If something is bolded, I think that it is better than the alternatives, but everything I write down here at least can get competitive use (I think). Feel free to let me know if you've had success with linked moves not listed here, and I may edit the post to add it if it's convincing, but ultimately this is just my opinion as of right now. (Shoutout to VannAccessible for giving the list a once over)
S-Tier:
S- Rank:

Kingambit (Any 2 attacks from this list:
Kowtow Cleave, Iron Head, Low Kick, and Lash Out/Night Slash)

Rillaboom (
Fake Out + Grassy Glide, Bulk Up + Knock Off/Wood Hammer)
A-Tier:
A+ Rank:

Dragapult (
Thunder Wave + Hex, Willo-Wisp + Hex, DD+Dragon Darts, Choice Specs)

Garchomp (
Spike + Stealth Rocks, Spikes + Dragon Tail, Earthquake + 2nd attack)

Great Tusk (
Bulk Up + Rapid Spin, Rapid Spin + Knock Off, Knock Off + CC, etc.)

Grimmsnarl (
Fake Out + Parting Shot, Light Screen + Reflect)

Iron Moth (
Meteor Beam + Agility, Acid Spray + Fiery Dance)

Raging Bolt (
Draco Meteor + Volt Switch, Calm Mind + Thunderbolt, Electric Terrain + Rising Voltage/Volt Switch)

Weavile (
Hone Claws + Triple Axel, Knock Off + Attacking Move)

Zamazenta (
Iron Defense + Body Press, Howl + Crunch/Close Combat)
A Rank:

Cinderace (
Pyro Ball/Flare Blitz + U-Turn, Bulk Up + Attack, Court Change + U-Turn)

Clefable (
Cosmic Power + Calm Mind, Calm Mind + Moonblast, Cosmic Power + Moonlight)

Glimmora (
Meteor Beam + Rock Polish, Mortal Spin + Venoshock, Stealth Rocks + Mortal Spin)

Heatran (
Magma Storm + Substitute, Magma Storm + Earth Power)

Hoopa-Unbound (
Hyperspace Fury + Lash Out/Knock Off, Really any 2 attacks, it hits hard)

Ogerpon-Wellspring (
Focus Energy + Ivy Cudgel, Ivy Cudgel + Attack/U-Turn)

Ribombee (
Skill Swap + Sticky Web, Sticky Web + U-Turn, Quiver Dance + Moonblast)

Skeledirge (
Torch Song + Any of these: Shadow Ball, Flame Charge, Slack Off)
A- Rank:

Alomomola (
Wish + Flip Turn, Mirror Coat/Scald + Flip Turn)

Azumarill (
Liquidation + Waterfall, Belly Drum + Liquidation)

Bellibolt (
Soak + Electric Attack)

Comfey (
Giga Drain + Draining Kiss)

Corviknight (
Tailwind + U-Turn, Roost + U-Turn, Agility + Bulk Up)

Garganacl (
Salt Cure + Recover/Iron Defense/Sandstorm/Substitute)

Iron Valiant (
Close Combat+ Knock Off/Moonblast/Spirit Break,
Choice Scarf w/Trick, Calm Mind + Moonblast)

Kyurem (
Dragon Dance + Icicle Spear/Scale Shot,
Blizzard/Ice Beam + Freeze Dry/Earth Power, Icicle Spear + Scale Shot)

Lycanroc-Dusk (
Accelrock + Quick Attack, Bulk Up/Crunch/Psychic Fangs + Close Combat)

Meowscarada (
Flower Trick/Knock Off + U-Turn, Flower Trick + Knock Off, Spikes + T-Spikes)

Mimikyu (
Will-o-Wisp/T-Wave/Taunt + Destiny Bond, Hone Claws+ Play rough)

Ogerpon-Cornerstone (
Focus + Ivy Cudgel, Ivy Cudgel + Attack/U-Turn, if on sun: Growth + Trailblaze/Ivy Cudgel)

Pecharunt (
Toxic/Wisp/Malignant Chain + Hex, Malignant Chain + Parting Shot)

Slowking-Galar (
Future Sight/T-Wave/Toxic
+ Chilly Reception)

Talonflame (
Acrobatics + Dual Wingbeat, Hurricane + Air Slash, Brave Bird + Roost)

Terapagos (
Calm Mind + Rapid Spin/Tera Starstorm)

Ting-Lu (
Spikes + Whirlwind, Earthquake + Payback)

Zapdos (
Tailwind/Roost + U-Turn/Volt Switch, if on rain:
Hurricane + Thunder/Weather Ball)

Zapdos-Galar (
Thunderous Kick + Brave Bird/Throat Chop/Close Combat, Bulk Up + Trailblaze/Agility)