Are there any?
What's the point of a mixer if you don't get a fresh entirely new bitcoin address with no connections to any other bitcoin that could be "tainted"
Speaking of tainted bitcoins. Some people said tainted bitcoins aren't a thing. Well tornado cash crackdowns seem to suggest otherwise.
Cheapest and safest option I know is to open private channel on Lightning, send funds to yourself to a regular lightning wallet and close the channel