Scyther, Gyarados, Arcanine, Nidoking, Hitmonlee, and Venusaur are the ones I would use.
I'm already using Arcanine and Venusaur, so there's that.
Hitmonlee... I'm just not too fond of fighting-only types.
Nidoking, I prefer Nidoqueen. I like the increased survivability.
Gyarados, I simply hate using what everyone else uses and Gyarados is too simple.
Scyther is too flimsy and don't feel like training it. It's lvl 23, and I need at least lvl 38 fighters. Arcanine just hit 30, I'm having a tough enough time training him.
(Note: I'm trying to get you to defend your choices. I need reasons, not just to do something.)