Pre-trib, mid-trib, post-trib etc are all subsets of premillennialism, and I think even premillennialism itself is in a minority among the wider Christendom.
I don't see too much post-trib these days: it is either pre-trib or straight idealist amillennialism or preterist postmillennialism or amillennialism.
Maybe you don't see too much post-trib these days, but I hear a lot of post-trib pre-millennialism. Frankly, I'm more of the "pan-trib" persuasion, though. It will all pan out in the end. I just need to be ready whenever it happens.