Here's a list of early POS coins that worth to take a look as they are newly started and are quite promising!
BannerCoin 3600 coins only!!! POS only
https://bitcointalk.org/index.php?topic=2092886.0Cyder coin (POS only)
https://bitcointalk.org/index.php?topic=2097594.0POStoken, airdrop is live now!!
https://bitcointalk.org/index.php?topic=2110712.0AltCommunitCoin, airdrop, mineable (POW&POS)
https://bitcointalk.org/index.php?topic=2105778