I'm clearly the best Soda! Jkjk
For me, Coke is my fav, a bit basic, but it hits that spot for me that a lot of other sodas do not.
Another one that I adore (even more than Coke!) is a drink called Ivi. I am not if you guys have that, but it seems to be prominent in the Balkans, or at least, seemed to be.
Ivi is a bit weird because now there isn't a single Ivi can anywhere, at least where I looked for, and that situation has happened before, so I hope that it gets back on shelves again. It's basically a peach soda that isn't actually that fizzy as far as I could tell, and it's much better for me than Coke.

There was also a lemon flavor, I tried it once and I despised it lmfao

There seems to be an orange flavor as well, but I've never seen it here in my country, nor have I seen 2l bottles of this (but I would buy one in a heartbeat if I do see it).