Ok since the coin join implementations are pretty much gone. Here's a privacy technique that could work.
- Get Zeus or Blixt Wallet. Buy inbound via LSP. They open a private Taproot channel.
- Stack sats on lightning.
- When balance is all on your side, close it. It's a Taproot channel so nobody would know it's a channel close.
- move funds to cold storage when fees are low.
- once you think your pubkey has been exposed enough, delete the wallet and start over with a new pubkey.
