Looking for a 29er fork, approx 100mm travel, must have a straight steerer and a 15mm axle. 100mm or 110mm spacing, don't mind, but realistically if you've got one it'll probably be 100mm.

E.g. 2012ish Reba or Fox 32

Also open to parts to build one up from lowers that take a 15mm axle and a compatible straight steerer CSU.