I saw some comments on Spedef Drill and wanted to add to that.
Right now strong electrics are hard to deal with for a lot of teams. Koko is obviously solid, Xurk is okay but can really pressure slow builds, Mag is everywhere because of Celesteela, etc. The best answers to them right now are Spedef Drill and Alolan Marowak since neither of them are shafted by common coverage options and both can work in offense/bulky offense, which is clearly the best playstyle at the moment.
I look at it this way:
Drill:
+solid bulk
+resists psychic (lele!), rock, fairy, poison immunity
+Rapid Spin
+gets rocks up reliably, even vs Mega Sab
+Rotom can't switch in easily for fear of EQ
+Lefties recovery
+resists Stealth Rock
+can run Toxic to deal with Mantine, Quag, etc.
-less offensive presence
-Lando-T walls it and keeps rocks up vs it
-not a reliable Pheromosa answer
-neutered by burn
-Celesteela and Skarm are hard counters
Wak:
+bulky
+resists grass, ice, fairy, fire, fighting immunity
+access to rocks
+Wisp helps against checks
+hits very hard even uninvested due to Thicc Club
+counters Pheromosa and can switch into Genesect
+coverage with Flare Blitz/Shadow Bone/EQ or Bonemarang is solid
+can't be burned
+can be used on Trick Room teams
-Thick Club means it can't get Leftover recovery, but if it holds Lefties it's noticeably weak
-weak to Stealth Rock
-dislikes poison/toxic
-can't handle psychic spam (though they can't switch in)
-walled by Rotom
-slow
They both bring a lot to the table in terms of role compression (which is everything nowadays) and are good in this meta as a result. To me, Wak is more splashable, but it really depends on the team. I'd recommend that people try both and play around with sets more, as the meta is still very young and I'd love to see some innovative takes on these two.
Edit
volx757 Yes, both are immune to electric attacks; I took that as a given and did not list it for that reason. As for Fire Punch>Flare Blitz, I've seen both and yes, they each have their ups and downs. The important thing is that Wak gets decent options for fire STAB. Cool EV spread btw.
Monkey Smurf Yes, the standard spread is 252 HP/4 Atk/252 SpD with a Careful nature. You can try that or the set p2 suggested and see which you prefer.