“TunnelBear” (my paid VPN service) gives you 500mb free per month...enough for an occasional user (you don’t need to VPN all the time, I don’t).
https://www.tunnelbear.com/pricing
I use IPVanish. No caps. 7% speed hit both up and down and an extra 10ms in ping for the encryption on a 100 mbit up/down link with 5ms ping to the backbone. Costing me just shy of $4 a month. 10 devices. Have had one hiccup in the last 6 months with them where speeds dropped to 1/2 of my capability for about 2 hours. All my traffic goes over VPN including cell data. Very satisfied with them and their performance. As a bonus they don’t do any logging.
Free VPN’s make $ by selling your data like your ISP makes $ selling your data. Using a free VPN is just plain dumb.