Like most PoW maximalist's, I too was heavily anti proof-of-stake until I stumbled across some gems after doing some srs digging.
One gem, Embercoin (EMB), gives 7200% yearly (instead of the original 720% - original dev fuarrrked up big time with this and original max supply). I've been staking for the past few weeks, with this single week seeing my best returns to date (.394 BTC), giving me 1 months worth of rewards it'd take from mining alone in less than a week.
Originally I put less than 100 bucks into this thing seeing as volume at the time showed a steady rise as it had just been added to CMC, daily 24 hour vol was fairly liquid on topia - pivoting from couple thou to ten thou+ USD give or take - and I had verified personally that the supposed 720% was in fact 7200% after looking through the git repo. So after seeing my first week of rewards of .16 BTC I then decided to place a couple hundred more into the coin as I knew with new development stepping in and reviving this project, it could have some big waves in next few months.
There is also another coin, b3coin (B3C), which also had high yearly interest (10000% from 60k - 70 or 80k blocks; currently at 57000-59000 blocks), but daily 24 hour volume is less than a hundred USD on average, and most of this is on scambit, so it's well advised to steer clear.
In no way do I advise you to go all in. This is completely high risk, high reward. If you have some idle capital and are only willing to put in what you are willing to lose, then feel free to ride this thing.
Lastly, I prefer to avoid posting holdings but know extraordinary claims, requires extraordinary evidence, so here's my address: http://www.presstab.pw/phpexplorer/EMB/address.php?address=eN8Jb2Zu1dmetw78TGD2XJGT4BsotLhKgH
For naysayers wanting proven ownership, here you go:
$ Emberd verifymessage "eN8Jb2Zu1dmetw78TGD2XJGT4BsotLhKgH" "IBKu3Gm/Ms71LdBdvTI4vf6YyWQNNGskp7gPtjdGyHFe7Bg2MhgS0e7JTH88y/gHgL5rP3FVeMEBtWXN3L+QfhM=" "hey its that random lain, still enjoying steaks"