Some VPN providers indeed sell their users data to third party organizations. Some pretend to be "independent", while being a part of a larger organization. Check out the VPN relationship map https://blog.windscribe.com/the-vpn-relationship-map/ and choose a provider that has the least scandals, not a part of an "umbrella" and has a reasonable (not too high and not too low) pricing. 

Based on the above criteria, I could recommend Mullvad, AirVPN, IVPN, AzireVPN and OVPN. The Mullvad appears to be the most secure, as "On April 18, 2023, Swedish police raided the offices of Mullvad with a search warrant and intended to seize computers with customer data. Such data did not exist. After consulting with prosecutors they left without taking anything."
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