The problem is only to get access to the site? I`m using the Brave, Chrome and FireFox browsers with different VPN addons and have no problem with it. And one more moment: these sites are banned only from your providers, or these sites don`t give a permission to use it for your country? Because if they banned your country - just look at other sites, you`ll can`t verify yourself without fake ID. And in such situation VPN is the smallest problem.