Here are a few suggestions (based on their current diff - not profitability!):
CMC, EOC, FAIL, FLT, EMD, NYAN, GLC, SPT, CSCI am not involved in any of these coins, but I have their wallet running and from time to time I am also solomining some of them with a few Mhs (making money is great, but popping a block is still unpayable
).
If your private pool supports merge mining, you might want to add
SJW as auxpow.
Note: The ones in
purple are POS/POW hybrids, the others are pure POW.