what birth control are you breast feeding moms on?

Br
My follow up appointment is on the 8th.i had to have an emergency c section on the 7th of February and so I feel as if I am so certain I don't want anymore kids it was too much for me especially since I had to have 2 blood transfusion because I lost so much blood 😩 but anyways what's the best birth control out there?  I've heard some are not good for if you're breastfeeding and I just want to be sure I am able to take BC but still provide milk for my son.