A few flavors I love in real life that I'd love to see there:
Rambutan
Chocolate
Mocha (whenever you implement coffee?)

Also, can you make it so, upon consumption, the drinks make a sipping sound instead of an eating one?

Adding on, but I'd also like to see a glow berry flavor. And it can give the potion effect of night vision or glowing

https://beta.curseforge.com/minecraft/mc-mods/drink-it-forge
This mod can customize the drink, the author can add linkage?