best VPN ?

Unless you are using VPN to access a private network (VPN means “Virtual Private Network”, after all) using it makes you less secure, not more, because it puts you at the mercy of the VPN provider, who knows everything about your browsing. How trustworthy are they? Avast, for example, was just fined $16 million for selling user’s browsing habits, after promising not to 3 years ago. And Google was fined $2 billion for spying on users of their private browsing feature of the Chrome browser.

For real privacy protection use iCloud Private Relay, which does not involve a 3rd party intermdiary→About iCloud Private Relay - Apple Support

Why do you think you need a VPN? If your employer requires one so that you can access a secure server, they will most likely provide one. If you think you need one because you think it adds to your personal security, well, it probably doesn't.

Don't use VPN services.