After trying literally every service for this purpose (except the wasabi ones), I can safely agree that JoinMarket is my favorite one. I use others too, of course, but JoinMarket is the most decentralised one.

It also comes with a fancy UI: Jam.

Here is the installation guide for multiple node implementations: https://jamdocs.org/software/installation/

Yes, it's not the easiest approach. Yes, it requires manual work. But it is worth it.