Was thinking the same earlier in the week. Eventually went with the DT Swiss EX 511 but they only come in 650b If it was 29er I would have gone XM 481. I also looked at the WTB i29s as I have some i25s that have are very good.
I’ve just gone with some Easton arc plus 35s from crc – 31.49 quid a rim at the moment.
Literally just built up this evening. I got some i25s cheap from PX which I was going to use… but decided might as well have some proper wide rims see what the fuss is about. Will be using with 2.4 and 2.25 tyres.