Tor can be used as a VPN (not recommended for anonymity unless used in conjunction with the Tor Browser). Orbot (Tor VPN) [0] for Android is pretty neat.
ProtonVPN, iVPN, Mullvad are oft suggested on news.yc in no particular order. Lantern.io is another alternative if you're looking to bypass stringent DPI firewalls.
Cloudflare's Warp offers a free tier, too, but is different from traditional VPNs.
Keep this in mind though, most VPNs do not claim to preserve privacy [1], some actively enroach upon it [2]. It is hard to achieve anonymity over rudimentary VPN setups [3].
Also see: https://thatoneprivacysite.net/
[0] https://guardianproject.info/apps/orbot
[1] https://news.ycombinator.com/item?id=19601503
[2] https://news.ycombinator.com/item?id=17889456
[3] https://news.ycombinator.com/item?id=21601031