Hello, Who can advise working, proven Ethereum mixers. Except for the tornado.
I can not, sorry. The demand for ETH mixers is so low that the risk to be scammed is so hight. Hence, everything that can be found on the web is surely 101% a scam.
In your shoes, I would prefer to make swap using an instant exchanges, a DEX, or a CEX with no KYC.
ETH>Anycoin>ETH. You won't probably see a difference in the fees, and you can a BTC mixer between if you want.