Best bottles for breastfed babies

We've had Mam ones and no issues. Just using the small sized teats they came with. Introduced it at 2 weeks and he's now 6 weeks. Has 3 or 4 bottles a week just to keep the familiarity up and then once a week or so (usually if I'm having a couple of drinks) he might have two or three expressed feeds in a row. We also pace feed, which apparently helps mimic the pattern of bfing

Second the Mam bottles, we used the size 0 teats when we used them at 2 weeks old but have now transitioned to EBF and had no issues I think slow flow tests are recommended for mixed feeding as it’s closer to breast milk let down, lansinoh & dr browns are meant to be good as well