I had the same issue earlier this year, and plumped for a Trek Stache, which I’m really, really happy with. I should point out that after calling every single shop I possibly could for a frame, I tried Jungle who said they’d keep an eye out, but only had full builds on their stock list and out at shops. Bless ’em, about six weeks later they called back, saying they had had someone ask for a full build in another size, but only had frames, so they had a brand new, albeit recently-stripped frame they could send me. Sadly I’d already ordered the Stache through my LBS, but I was really impressed that they’d kept note and remembered. Drop ’em a line, you may be lucky!
The Chameleon ticked all the boxes: reasonable front centre, but not too bonkers, short chainstays (I had a Mk2 Scandal for about six years before this, and the CS length and cable routing were my only grumbles), could do 27.5+ if I really wanted to, and could go singlespeed. There’s probably one still in my future at some point, but for now the Trek is just so much fun. Might give it a try with 29+ at some point, definitely going to swap wheels with a friend who has a Sonder and wants to try 29″ wheels, assuming he’ll be happy lending me his 27.5+ ones.