I was wondering this too as I have been running a comparison between Nemosminer and Nicehash on separate GTX 1080 and NH spends a lot of time on Skein. The only Skein coin I've found so far that doesn't seem sketchy is a version of Digibyte (it's a multi-algo coin, and the main one appears to be Quark, which is only practical with ASIC miners).

See WTM calculator here: https://whattomine.com/coins/114-dgb-skein