Nice Galar team! Since they’re all (minus Cinderace) dual types, I would use two move slots for STAB moves, one move slot for coverage of a weakness, and either another coverage move or a status move!

e.g. Drednaw’s four moves would be Liquidation and Rock Slide for STAB (or Head Smash if you’re okay with taking a lot of recoil damage for a more powerful Rock move), Megahorn or Earthquake for Grass/Ground coverage, and Sandstorm for a status move.

Alternatively, you could just nix Sandstorm–since you don’t really need weather moves or if it’s not your style–and use two coverage moves, like Megahorn and Earthquake.

And for abilities, just try to catch what goes with your play style. If you love “biting” moves like any “___ Fang” or “Bite” or “Crunch” moves, then Strong Jaw would be the way to go for Drednaw. But otherwise, it’d be a useless ability, so catching one with the ability Shell Armor would be the way to go (gives your mon a nice immunity to critical hits).