I’m resisting the urge to recreate r/Peloton (a sub about pro bike racing) before someone uses the name for a community based on those dumb exercise bikes.
You could always make like Peloton Racing. Imo since all the sub names need the @instance there's not a whole lot of benefit to having the shorter name like Reddit where people just typing r/whatever into the url browser might take them to a relevant sub. Fed communities are going to have long specific names either way lol