I'd say the best pocket tool/knife I've used is the Leatherman Sidekick.

I've got a handful of different Leatherman multi-tools (Charge, Wave, Wingman, etc.), but for my money, the Sidekick is best one for every day usage. It combines useful features, reasonable price, and a lightweight package that just can't be beat: https://www.leatherman.com/sidekick-9.html

The Sidekick retails for around $50, but it's well worth the money. So much so that I've bought a few over the years for friends and relatives.

If I were to recommend "just" a knife for everyday carry, it would be the Spyderco Tenacious G10. Both the Leatherman and Spyderco can be found on Amazon.