I know he makes himself gag when I give him one. But I spoke to someone who said her little boy was the same and the he took one and I never thought to ask her the make of it. He won't take a tommee tippee bottle either so I brought a special one called minbie and he takes that

Dr.browns or Philips Avent

My boy didn't have one for a while, but I introduced it cos he was latching on just to et to sleep and it just didn't allow me to do anything throughout the day.. he put his nose up to all then I bought an avent one and he took to it like a duck to water! I'll get a pic

Have you tried nuk ? There designed to be the same as the breast x