I doubt a free VPN is the right plan to make. You should go for a paid VPN that’s light on the pocket, since it’s way more secure. Especially if you’re going to use one for torrenting. As a matter of fact, free VPN providers usually log user data or sell them to third party websites, for criminating reasons. Always go for a budgeted VPN.
Hope this helps! I came across this review, the VPN is quite affordable, I’ve tested it, and the speeds arent as fast as Express, but it’s worth it. Check it out.