bunch of proxies of sadly been taken down but I added a new one for a test. (New Updates Aswell!)
ProtonVPN is a free VPN, and has many servers that you can use, I'll show you how you can have a server on your Chromebook.
1 - Create or log into a Proton VPN account
https://account.protonvpn.com/signup
2 - Once you have an account go to - account > OpenVPN / IKEv2 username
3 - Copy the username and password
4 - Unzip the files and choose one that you want to use (like us-19 or s/t)
5 - Edit it in the Text editor app (it's a built-in Chrome app on Chromebook) or somewhere
6 - All the way at the end, after "TLSAuthContents": "-----BEGIN OpenVPN Static key V1----- put in
,
"Username": "Username_here",
"Password": "Password_here"
You can just copy and paste it and you'll get the right formatting
Make sure that you start the paste right after the end quotation mark
7 - Save the onc file
8 - Upload it to chrome://network#general all the way at the bottom where it says Import ONC File (don't worry if you don't notice anything, just try scrolling down a little more and it should say Networks imported: 1
Credit to The Greatest Giant#0110
Don't know how to put the username and password in?
Here's a site made by SpaceSaver2000#2992
https://spacesaver.github.io/VPNCredAdderONC/