Girls, who used breast pads during breastfeeding, what are the best on…

Girls, who used breast pads during breastfeeding, what are the best ones and how long did you use them? I have an anatomical nipple shape, one is inverted, the other is flat, I'm trying to give in Medela S pads, it doesn't take... I don't know what to do so that my breasts will take it.