One is Flying Press. It is fun using a move with two different types, even if you don't get STAB twice. Also, fun animation. Trick Room is also pretty unique. Letting the slow Pokémon go first really helps Pokémon like Reuniclus and Stakataka put in heavy work. It's just a lot of fun to use and abuse.
Freeze-Dry is a move that I always found interesting. An ice type move that is super effective against water types. Another move that I like is Swagger. It is pretty risky, considering that you can power up the opponent, but they can also confuse themselves and do a lot more damage.
As a mild Malamar fan, I really want to see Topsy Turvy used more often. The ability to just reverse stats has so much potential, to screw over boosting opponents, or to assist debuffed teammates! If only Malamar was better...