Ice cream soda :)
try some of this its called tropical it tastes best from the glass bottles pretty much only ecuadorian restaurants sell them though, theyre delicious
Inca Cola is pretty good too
I don't drink soda anymore, but nothing will beat cola. What is cola flavor? Most of he others have some sort of basis in reality (oranges, straweberries, etc.), but what is cola?
Most cola has no Kola nut extract at all, but rather just extracts form various spicy barks, fruit rinds, and nuts. Coca Cola (1890s style w/o coca), according to some, probably got most of it flavors from Orange oil, Lemon oil, Nutmeg oil, Coriander, Neroli (Bitter Orange), Cinnamon, and vanilla. Modern coke probably uses a simplified (cheaper set) of ingredients to give the same 'essential oils' taste. Modern 'cola flavor' is 'chemistry'; i.e. mostly laboratory created flavors brought to you by food science that can be called natural...but are not made from what you think. For example vanilla flavor is made from guaiacol or lignin....err wood...which is a byproduct of the wood pulp industry.
The reason why cola is so hard to place is because it is several flavors at once. If you go to specialty stories you can buy cola with Kola Nut extracts, but its is not that different in most cases because - citrus oils, vanilla, and cinnamon - are in there too which is 90% of the cola flavor.