Niche….. I’m so with you. Here’s some suggestions:
Pivot Mach 4 or 429, somewhere on here there’s a long term review by Benji and he liked the 4 I believe.
Not-so-niche shortish travel could be one of the new Scott Genii 650B’s. Or a bit more niche would be those KTM peeps do some rather fine looking short travel 650B’s too.
Or look to PYGA (gotta be dead niche!) their new 120mm 29er has just received stonking reviews and is definately worth a look as the review seemed to talk of it behaving in a very sprightly manner, which I imagine you might like. 🙂
I do have one more, but it’s so niche and I’ll be getting one this year, that I wont publicly announce it until I’ve taken delivery!!! But you could PM me if you really wanna know!! 🙂