I think Tor with Tor Bridges (to obscure that you use Tor) is your best bet. Or using Tor over a VPN (using a VPN systemwide and then connect to Tor)
Everything else is just standard opsec, not leaking personal information and so on
Also, don't use a E-Mail address or phone number tied to your real information, like your name or IP address. Because that is how many people got caught in the past.