What is the best baby bottle to use while feeding a five-month-old?

It depends on your baby. There are so many brands and types of bottles with different teats. You have to do some trial and error. Many parents use Avent Natural, Pigeon and NUK. In my case, my baby went on a sudden bottle strike when she was one month old and refused to drink milk from any of the bottles I had. She refused Tommee Tippee, Pigeon, Avent Natural, Medela Calma, Spectra and Pur. Of course, it could also be due to the teats. A few days ago, she successfully drank expressed breast milk from a MAM bottle, so I can say that she likes MAM. The teat is flat instead of rounded. It's also anti-colic and I can hear the air escaping from the valves.

thanks