What are you going to use it for?

What services/programs/applications are you trying to run through it?

Is it just to avoid tracking so you can obfuscate your browsing, or are you trying to run specific programs through it that will make connections to other services at other locations that you control or don’t control?

Are you trying to make VPN connections between two (or multiple locations) that you control?

What kind of performance are you looking for? How will you measure this?

What Operating System(s) or devices will it need to support?

What type of (Tracking) are you referring to? And what format of reporting are you wanting?

Without knowing what your specific requirements are, limits any type of recommendations anyone can make to your specific needs to just educated (or even non-educated) guesses.

SAM has a good post that you should read that covers some of the finer points of Asking Better Questions that will help you in Getting Better Answers - Asking Better Questions

If you’re trying to do something untoward, questionable, or illegal, even using an obfuscation service, VPN service or something similar, there are still ways that law enforcement agencies can potentially gain access/uncover/serve warrants to legitimate companies for logs/etc., in order to get information on you. Tor is also not always 100% obfuscated depending on how you are using it as there are certain circumstances where other objects will leak your identity information to 3rd parties.

I’m not saying this to scare you. This advice is so you do proper research into whatever solution, company or service that you decide on using, even if using it for legitimate reasons.