Sweet tasting drink you can order at any bar?

Don’t normally go drinking all that much, but I’m in a play and for closing night tonight they wanna go bar hopping after. What’s an easy drink that can be ordered at any bar from an upscale place to a dive bar, that tastes sweet. I’ll resort to a Tom Collin’s or 7 and 7 otherwise because I’ve heard those are good (also because our play is Rent and one of the characters is named Tom Collins lol)