Help!

My little one had been exclusively breast fed since he was 2 weeks old. At 6 months old I started trying to get him to take a bottle or cup of milk (formula) and he wouldn’t take it. I thought it was the cup, but then I tried water and he drank it perfectly. He will also take breastmilk but unfortunately my supply is getting very low now at 8 months and if I pump it makes the rest of our day miserable until my supply comes back. I was suggested to try almond milk, so instead of water with his dinner I tried 2 Oz of unsweetened vanilla almond milk. He drank it like a champ. So I think it’s a sweetness thing.

So long story short, what are the sweetest formulas I can try? We use the ready to feed Enfamil because I heard it was sweet, but he hates it.

And yes I know any other milk should not replace breastmilk or formula, it was just to try.