i have been enjoying Cappuccino from Flavor Jungle at 2.5% (up to 3%) to get a smooth coffee drink that’s not so dark or bitter. i guess you can also find a similar flavor by FA, depends on how strong you want the final outcome.
the milk base, i would use a mix of Cream Fresh (FA) at 0.5% with Meringue (FA) at 1.0%
Caramel i would use 1.5% to 2% Caramel (FA),
these are the main notes, then i would add in some nice Vanilla (like French Vanilla or even Vanilla Bean Ice Cream (CAP) at around 2% … and maybe 0.5% to 1% of another cream (Milk & Honey? or some Whipped Cream) to tie all things together … then give this at least a week to steep. add sweetener later if i need - don’t think i would.
i’m sure there are many ways to mix this and different variations,this is what i tried hope gives you a starting point.