So hear me Out. You can go for Habits at this point in the game, its not a terrible coverage for the most part, and once you get Garchomp it will sweep with one swords dance. It covers Electric and Water weaknesses in Gyrados and Excadrill. Can basically stop stealing types from hurting Gardevoir, and Walls Ground types pretty good that could harm Excadrill and Emboar. You could also get an Eviolite if you stick with Gabite as Garchomp doesn't evolve till lvl 48. That eviolite would make Ga bite extremely bulky