Sorry. I'm playing full ring and NL, but I'd also like to hear about PL and limit if it's not too much trouble.
You want to be playing hands that can scoop, which means hands that are 2 way hands.
A smart guy once said that PLO8/NLO8 is a game of AND. When you're putting money into the pot, you need AND. What I mean by this is you need a hand that goes 2 ways. So you say to yourself "I have top set AND the 2nd nut low, so I can call this bet.".
And to break things down further, I classify hands by what kind of low hands they can make when I'm playing.
1) A2 - This hand combination is almost always the nut low unless there's an A or 2 on the flop. If you never played a hand from UTG without an A2, you wouldn't be doing terribly.
2) A3, 23 - These are 1 card nut low hands. They require either an A or 2 on the flop in order to be the nut low. They also make the 2nd or 3rd nuts when there's any other low out.
3) 34, A4, 24 - Super speculative low hands that require 2 cards to hit to make the nut low.
4) No low potential. If your hand has no A, 2, or 3 in it, your low potential is almost negligible except in certain situations (blind vs. blind for example).
The worse your low potential, the more high potential you need, and the later your position needs to be. So a hand like AA45ds is good enough to play from most any position, but only because you have lots of high potential to go with your weak low draws. And hands with little or no low potential like KKQJds, KQJTds, or KK24ds can be played from very late position, and preferably in pots with few players.
But they key is that hands in group 1 & 2 with high potential are going to be your bread & butter.