As the title says. I have used Bitcoin Blender but it closed. There are many scams out there.
I would like a reliable mixer / tumbler.
Many thanks.
Please be extra careful when using mixers!
Some good members here exposed multiple scam clone websites.
I would suggest that you use wallets with integrated mixers:
1.
https://www.wasabiwallet.io/2.
https://samouraiwallet.com/They are both focused on privacy.
Wasabi uses trustless Coinjoin and has Tor intergated.
Wasabi is best for desktop, and Samourai for mobile.
Read FAQ for details.