EBF - what bottles did your LO accept?

My LO is now 8 weeks and EBF since day one. It's going really well, he's absolutely thriving. We would ideally like him to take a bottle though just so I can maybe be away from baby (even just for a nice long relaxing bath) or if we ever need a babysitter. I want to keep breasfeeding but have bottles as an option if needed. Problem is he just gags of them, he will not take a bottle at all. We've tried Philips, Avent & DR Brown. Can anyone recommend what their little ones would take or any tips?? TIA