There's a lot. Users: cranefortune and Jared oughta have a bunch to say on this.
Off top: Blackout, Dreamworld - http://www.themagicswisher.net/2014/12/blackout-dreamworld-1995.html?m=1
Dreamworld is great. If you like that, the rest of the early Blackout tapes are worth checking out too: Lil' E - Playa for Life, Lil' Slim - Robbery's My Specialty, Playa Posse - Bigga and Betta Thangs, Terror - It's Whateva. Plus Lil' Noid - Paranoid Funk which was recently reissued. Probably forgetting a few. I'm a big fan of the more polished stuff Blackout did with Playa Fly and Gangsta Blac too, but it seems like the internet generally prefers the early, super grimy stuff.
Tommy Wright III - On the Run is the pinnacle of Memphis for me, though. TW3 has super deep catalog and almost all of it is worthwhile. Another personal favorite is the N.O.D. tape.
Been pretty obsessed with a couple DJ Squeeky tracks lately:
Don't Turn Around and
I Got a Plan