Bottle recommendations for nursing babes?

Shae • Happily married and mama to Ronan, Freyja and Scotti. 💞

Trying to find a good bottle for my son. I am currently using the Avent natural set but he doesn’t have the best latch with them — I think because the nipple is fairly long. I would appreciate any recommendations you have! Especially if they tend to improve gassiness and are easy to switch back and forth to from nursing. (: