After a budget 1x crankset, square taper or hollow tech. If you also have a hollow tech bb that could be handy, the spares I have aren’t in the best condition. Thanks!
https://m.pinkbike.com/buysell/3659291/
Mine are ht2 but the spec list they've posted says 30mm BB. I'd check with the seller. Probably doesn't matter too much either way as you can get an ht2 or 30mm BB at reasonable prices. I've probably got a spare 30mm ethirteen BB if they are that size (no's, so decent).