Can’t get my baby off the bottle!

AZ

He’s a good eater and has 3 full meals with 1 or 2 snacks but I just can’t get him of the bottle.

He’s on 1-2 naps a day so has a bottle with each nap, has a bottle to fall asleep on at night and then wakes up once at night (6 oz each bottle so 24oz total)

What can I do? Anybody else in the same situation?

Edit: sorry I forgot to mention he’s 17 months old