Im not an electrician but I did just wire my garage and it passed the township inspection. Square D is a band that's been around a long time. They have 2 lines. The very affordable "Homeline" is their residential line up. The "QO" is their commercial grade line and does cost more. You will find all the home improvement stores carry these lines along with the other brands. The brands offer a great deal on a box with several breakers included to get you started. I went with this unit in my new detached garage.
https://www.farmandfleet.com/products/g--7899-square-d-load-center-circuit-breaker.html