>>37637868I'd pick a steel type gym based around a casino or something industrial. Hitting the slots gives you different trainers and hitting the jackpot gives you me. After defeating a trainer, there's a lever you pull to increase the chance of a jackpot. I'd probably be the sixth gym or something, as that's what most steel gym leaders are.
Bronzong (Level 38)
>Levitate>Gyro Ball>Brick Break>Psyshock>Hypnosis or something dumb, replace with trick room in rematchesExcadrill (Level 39)
>Sand Rush>Sandstorm>Metal Claw>Rock Slide>EarthquakeAggron (Level 42)
>Sturdy I suppose>Iron Tail>Protect>Rock Slide>Take Down>TM 19: Iron Tail>Badge is a platinum coin with a Poke Ball symbol on it