Pay for your VPN with privacy coins or run your own VPN. Of course the unethical and illegal method is to compromise a number of systems to route traffic, but obviously that’s problematic.
That doesn't matter since you're still connected to them with your IP address, plus there's the additional problem of browser fingerprinting which alone may leak enough information to de-anonymize you and let us not even mention the lack of first-party isolation. Running your own VPN is even worse since it basically links you to all of the traffic.