Aperitivo near Piazzale Michelangelo

There is at least one bar options right around Piazzale Michelangelo. Just below the piazza level is Vip’s Bar facing the city with outside tables with the same view as the piazza. And the piazza itself is - as you would expect - filled with vendors taking advantage of the people coming to watch the sunset with food and drinks (and tourist tat) from various carts.

I know there is also a bar in the rose garden - which you can walk through on your way up the hill which I'm sure is great for a drink but the view is less sweeping that all the way up at the piazza.

Assuming you come up through Porta San Miniato and not along the river there are a ton of food places just before you get to Porta San Miniato and I can't imagine you'll have any trouble finding a place to grab an sprtiz. Just picking one at random that looks good check out the back patio for Rifrullo Firenze basically looking at Porta San Miniato. I'd happily have a drink there every night.

Florence is amazing, have a great trip,
=Tod

Vip's Bar is indeed the place to go. It's located a few steps down from the Piazza itself but features a Belvedere view across the city. Nice ambiance, and pretty fair pricing for food and drink all things considered. We liked it so much that we went there twice for lunch on our most recent trip . Here's their Website if you'd like to check it out.