Lately I've bought some Nem (You get reward when wallet is offline), Nxt (rewards but need wallet to be online) & Blackcoin (also wallet online).
Do have some more suggestions?
Old/New coins that have reasonable minimum amount of coins that need's to hold.
I love investing for long term so by doing so, if the devs behind the coins are good and I decide to invest on it, why not to get some rewards along with it?
Let's make a good and quality list, I'm sure others also looking for that.
i have few other choice for you, dunno if you like them they ar enot pure pos, but they have a good pos, like atomcoin, and rain(condensate) there is also nexucoin, but the pos is week, anyway the best oen is decred but you need to invest a lot to have a good pos revenue