Your definitive source of cryptocurriences knowledge.
There are thousands of cryptocurrencies, open source or not, mining or staking, more or less decentralized. Dozens of them have gained more popularity and these are noteworthy. There are new interesting projects with wide possibilities and copies of old proven solutions. Some provide anonymity, others only support it. Currency transparency is a fundamental feature, and the more decentralized and less controllable then better. Only one thing is not all that they can do best - rate stability.