Any guides on how to do this?
You want to use a KYC-free, no-registration coin changer. flyp.me seems the best right now, but these services tend not to last long KYC-free.
Note that although bisq is decentralized and therefore more likely to survive long-term, it's pseudonymous, so an observer can link together all of your bisq transactions. This is very bad for privacy.
ChipMixer follows a completely different approach which isnt bad at all.
If ChipMixer keeps logs (which you can't possibly know for sure), then they know exactly where the coins are coming from and going.