If you want to combine bf and bottle, people on the bf threads heartily recommend Breastflow - and US Amazon sells BPA free versions. They have two teats, so the baby has to both compress and suck, as with a breast. Apparently they help bf babies get the hang - they can be awful with bottles, because the technique is so different.
I had to use Tommee Tippee the first 3 months, because they make a bottle that happens to suit tongue-tied babies like no other. (All their products are awful in every other respect - bottle lids swell with heat so leak, infuriating when the milk is expressed; the heaters don't heat well or switch off at all except at the mains; the insulator just does not insulate and the washing tool has a nice exposed wire at the top perfect for scratching the bottles, and allowing bacteria to breed/BPA to leach. BUT the paed. consultant we saw said all tt babies parents' seem to end up using the special slow-flow teats with the central thingie, because any other either chokes or starves the baby as they can't use their tongue properly, so we weren't alone in being forced to resort to them. They claim they are breastlike purely because there's a huge dome on the teat, but the nipple bit is nothing like a human nipple at all, so it's breastlike to the adult, not the baby - which surely is pointless except in sales terms?
Rant over! Sorry, I just hated the things, and was trapped with them.
I'm now switching to NUK glass ones. Big benefit is that they retain heat well and I think probably have better conductivity - important with bm, which is a living substance so cells can be killed by too much heat. Mothercare online sell them.