Free is good for switching countries. You only really need paid if you are concerned about security and want to be safe from government and hackers reading your Internet data. If you dont care about that just go with the free ones but keep in mind they do log your traffic. Paid ones like NordVPN or ProtonVPN do not keep logs.
It's really up to you, the free ones do the job fine.
RE: DTube Revolution means we’re giving birth to Freedom of speech and FUCK DLive and PewDiePie