Article taken from the crypto-miningblog.com website. A great source of Crypto currency information. Cheers to them.
A lot of people do not like much Proof of Stake (PoS) coins as quite a lot of these do not have a long lifespan and are generally considered a loss of time and money, however there are some coins that have endured the test of time. Some of these coins might be an interesting option to invest into by buying and making some profit from the staking and future increase in their value, below we have compiled a short list of some such coins with a bit more details about each one and a link to the announcement thread on Bitcointalk where you can get additional information to help you make a decision. The focus of the list are coins with higher annual interest rate as if there is just 1% or less per year you can only hope to gain profit by long term increase of the value of the coin. When considering PoS coins that might be interesting for long term investment you should look for ones with higher interest rate that start at about 5% annually, but be careful with ones that have a very high interest rate as that might not be that good. Other things to look for include an active and bigger community of users, the coin being traded on larger altcoin exchanges such as Bitttrex or Poloniex with a decent volume. Check our list below with some such coins that we consider that are worth checking out in more detail if you are interested in making investment in Proof of Stake coins, the list may be missing some coins, so feel free to point additional ones in your comments.
1.Diamondcoin
2.Coinmagi
3.Bitbean
4.Reddcoin
5.Solarcoin
6.Piggycoin