Bottles

So my son is 5 weeks old .. and  ebf. I pump milk and like to use it usually only when I go out on errands, drink a few beers. The problem is my son seems to only like my Tatas and not the bottle. I have noticed that the nipple I use makes the milk come out fairly fast.. I'm using the tommee tippee bottles. Do u other mamas have better bottle suggestions or just advice on what I should do to make him like the bottle more than he does. It makes it hard to feed him out and about and also even just giving me and boobies a break! Lol 
Thank you 💋