We are currently performing reviews of decentralized and regulated stablecoins.
Reviews done so far:

TrueUSD - https://medium.com/cp-processor/stable-coin-review-trust-token-tusd-60bc0a3178f2
Gemini Dollar - https://medium.com/cp-processor/stable-coin-review-gemini-dollar-gusd-7f3ad1ac18d4
USD COIN - https://medium.com/cp-processor/stable-coin-review-usd-coin-usdc-c7cf78c81dfb
Paxos Standard - https://medium.com/cp-processor/stable-coin-review-paxos-standard-pax-892ef3fd24c8

They explain how these stablecoins work, their trading pairs, procedures for buying and redeeming them, and a lot more