Dare i say it, but planet x have two new Ti frames (at least two) coming out soon. If British names appeal, they’re the Hurricane and Spitfire.
the old PX ones were made by Lynskey; mine was made by Serotta (who are now #22 bicycles). I’ve nothing but praise for mine; a sample, identical to a Great Divide. PX won’t say where the new ones are made, but the Pickenflick is Chinese (not saying it’s bad off course).
There’s also Burls. Complete custom, for about a grand.
Check out Fatbirds in Hunstanton. Best place to buy Ti.