For easy privacy, I use mixer I think this is the best solution for me.
Regarding a wallet - using Electrum with tor connection is safe I guess. But if we talk about Wasabi and Samourai then I have no idea how to compare since I have not used Samourai wallet yet. I like the coinjoin feature of Wasabi but here we have two limitations I guess.
1. It's very time-consuming the max you can do at once is around 0.1 BTC
2. I think for higher anonymity you are ending up paying very higher fees too.
Best practice without costing much is learning how to use coin control and with tor connection in Electrum you can stay anonymous with some creative moves when you are moving your coins.
By the way, I think if you move this topic to
Wallet software section then I guess we will find some other quality poster who will have their own input in here too. This does not mean that you made this post in wrong section, I think this section is fine too but more quality posters about this niche will be available in the section I was recommending.