Free VPN that works with VPN manager

Hi everyone sorry if this is a duplicate post I’m new to both Kodi and the forum and couldn’t find what I was looking for.

I installed VPN manager in Kodi (this is on my PC) and I am trying to find a decent free VPN ( I may use a paid one at some point but I’m only just starting out with Kodi and didn’t want spend anything yet).

I tried CyberGhostVPN but when I was configuring this in VPN manager it needs a separate username and password to your normal one that you get by adding a device which you can only do if you are a paid member.

Can anyone help with this please? Either recommending a free VPN that they use in VPN manager or a different VPN add on that works in Kodi on PC?

thanks.