This is a research project I want to do. Probably after this season when there's more data.
I'm guessing PG is easiest to find. There's a lot of veteran mid major all-conference PGs that develop skill over years and up-transfer and do pretty well. The Norchad Omier's are a little more sparse.
I'm not sure that 3&D wing guys are really that easy, though, because the mid major levels typically don't have the size and athleticism. You can find 3 and not much D (like Joey), but starter level wing shooters are pretty coveted. The portal this year didn't really have that much wing shooting tbh. We really struck gold with Spencer late in the process after missing on Timberlake. There were only a handful of other guys who were high major starter quality guys (Dalton Knecht, DJ Rodman, TJ Bamba, Denver Jones, maybe Simas). And Spencer was honestly the best one. A couple others who were good enough and shoot but not really "shooters" (Khalif Battle, Marcus Domask, etc.)