Standard 10sp SRAM powerlinks work fine, IMO if you shorten a shimano 10spd chain don’t rejoin it – I had massive problems with the links breaking after I rejoined.
Stuck a powerlink on and it’s fine now – they are hard to get on though so if you struggle getting it to lock, bring the link around to the top of the chain just in front of the cassette, put the brakes on and kick the pedal forwards to lock it. I don’t know if this is common knowledge… but I spent 20mins trying to pull the link together manually trailside before asking one of the techs at the shop who did it in seconds like this!