https://www.vpnmentor.com/blog/tor-browser-work-relate-using-vpn/
You could consider the free TOR Privacy Service (URL above).
NOT personally recommending TOR to you either.
If YOU test and like TOR Service, fine, if not, fine too.
Apparently, TOR does SLOW considerably your Internet Connection speed performance.
And no, not willing to test anything here, related to (TOR) VPN type services.
With FOXYPROXY Extension, YOU can input 'ANONYMOUS' PROXY SERVERS yourself.
The problem is to find 'ANONYMOUS' PROXY SERVERS that are 'free' for usage.
This would complete any help that I might offer you on IP Privacy issues, which is not much.
And, as always, GOOGLE (Search) is your friend.