Hello, Who can advise working, proven Ethereum mixers. Except for the tornado.
But this list is about Bitcoin mixers.
Nonetheless, checkout ETH-Mixer.com
This is their thread, though not active -
https://bitcointalk.org/index.php?topic=2930843.0 (I can see a couple of members had some issues, one got his resolved.
I am not vouching for them since I have never used the service, so I advise you to;
1. DYOR
2. Proceed with caution and send in small test amounts to see if the mixer works