Valkey, dragonfly, kvrocks are all protocol-compatible and mostly drop-in replacements for upstream Redis.

If you want something hosted/managed, there’s Upstash Redis (though I reckon they’ll soon have to change the name of that offering).

Microsoft has also been working on one. https://microsoft.github.io/garnet/

Kvrocks is pretty substantially different, from my understanding. It only shares the protocol.