Try SquareX's disposable browser - works for me in China and is basically Remote Browser Isolation but for consumers. It seems free right now - https://www.sqrx.com
It seems to accept sharklasers.com (aka anonymous) email addresses though, so you don't have to use your real email address. :)
It also seems to work via Tor Browser, although it's a bit slow.
use a dummy email -- if you feel so unsafe. At least Squarex is free right now so no credit card needed