Most aren't too fussy about soil. A standard soil should work for most terrestrial ones, and LFS is generally a fairly good bet. I have U. Sandersonii happy in a standard CP peat-and-sand soil, and U. Longifolia happy in live LFS.
They like a lot of water. Seriously, flood 'em now and then. These are the only CPs that will happily sit in a container with no drainage.
Also, if you put U. Sandersonii (and, presumably, others) in a clear-sided container, they sprout leaves all along the roots that are along the sides. Here's some of mine in a wineglass. I have like 10 times as much of this as I did when I potted it there in late December, it's all over the top and creeping down the sides.
And it's adorable in a teacup. There's way more of it just barely under the surface.