Sangria is fine. But I'd just serve beer and wine.

I think I may have too many flavors going on to add Sangria to the mix?

Some good craft beers would go nicely, I think, if you have beer drinkers on your guest list.

I'd consider a signature cocktail like a mojito by the pitcher. Then I'd offer both red and white wine and a beer. Mojitos

I would offer a tight alcohol menu of Campari as a light, refreshing cocktail. There are lovely signature drinks such as Campari Spritz, Negroni and Americano. You could consider Prosecco (combine with Campari for the Spritz), Pinot Grigio, Sangiovese and a lighter beer like Stella.

Aperol Spritz: http://www.aperol.com/int/en/aperol-world/product/cocktails-highlights 

Refreshing and Italian!

I agree that sangria isn't a great pairing with the menu. I'd go with a selection of beer and wine and/or wine spritzers. I also like mojitos quite a bit but I don't think they go with the meal flavors either.

If you wanted, you could have a cocktail with dessert.. or prosecco with berries but I really don't think that's necessary for a luncheon.

I am a little odd, but I don't like red wine in spring and summer and I don't serve it.

Red & white wine, craft beer (local?), and some soft drinks...maybe iced tea (let them add their own lemon and sweetener) flavored water (strawberry, melon or some such), seltzer.

I have realized lately that my signature cocktails go to waste but a nice sampling of beer, wine and seltzer always go over well.

I live in a professional drinking town so I can't imagine a party without alcohol. People would be sneaking it in or leaving (sad but true).

At the minimum, I would have light red wine, white wine, craft beer (including a mix of light and more robust). Also something to add to the bucket is hard seltzer.

I am not a big drinker but hard seltzer is my new favorite drink when it is warm out or at the beach. White Claw has mix packs which have 3 flavors in one box of 12. Each can is 5% alcohol and so refreshing. They are pretty new here (1 year) but catching on other places.

Mojitos are pretty big here as well and very pretty in a clear plastic cup as well. We pre-make the rum, min, sugar and lime part of the mojito in a pitcher or mason jar so guests can just pour over ice and add the club soda. Or you can do a cheater one and use frozen margarita or limeade as a base, add mint, lime wedge garnish and club soda.

Edited to add...also when I have parties, I offer all kinds of non alcoholic drinks like iced teas, sodas etc. Most of it is not touched. So now I just buy regular flavored seltzers and water bottles and put in a big ice bucket.

When I bought the dress I didn't need last week, I bought casual stuff I didn't need to. So what can I bring? ;)

as everyone else mentioned, beer and wine. Since its spring, I would substitute white for a dry rose.

For that time of day I would do beer, wine and Bellini's. A more up to date version of champagne cocktail using Prosecco.

There are several recipes online but this one is great. You can make the base up ahead of time. Severs 8 to 10

4 ripe peaches

1/3 cup of peach schnapps

blend

pour in flute 1/4 way up

fill with Prosecco

For every 8 to 10 guests 750 mil of Prosecco

Hand it to guests as they enter

Stop serving once distinguished guests start singing a Nelly tune...it's getting hot in here, hot, hot...

I never saw a "signature" cocktail ever in California. Beer and wine and whatever the host had in his bar. Maybe there would be makings for one or two house specials, never premade. Here in the East, I've seen them a couple of times, but I hate rum and refuse to drink sugary stuff, so we bring our own wine.

Having a pre-mixed cocktail as the only alternative is not at all appealing to me.

I would serve a hard pear or apple cider.

In Venice the spritz is THE aperitif to order. Women tend order it with aperol whereas men traditionally prefer it made with Compari it is a wonderful and light drink. We had it daily in Venice, and have re-created it here at home once. We will definitely be making it more often. Especially in the summer months.

I had a similar party and I offered beer (just one kind) some kind of wine, and some kind of brandy, maybe pear or peach, can't remember. Then a variety of sodas such as seven up, probably something diet, and unsweetened flavored ones. Folks could make their own sangria, which some did. I also think I had champagne because what's a party without champagne although I think in that case it was prosecco. If I did it again, I would maybe ad some kind of flavored vodka. That way if folks want a mixed drink they can make it with the soda pop. Also have a pitcher of water. The guys drank beer and the ladies went or the sweeter stuff. I have also been to parties where they offered hard lemonade, that's fun.

Edited to add that I can't wait to find some of the herbal liqueurs like Aperol or Compari this year to add instead of flavored brandy. I hate to buy it in such large bottles though! Wish there was a cool place I could try out these drinks but I live in the boonies and we aren't into that much.

Your menu looks italianish and given the time of day I think a campari cocktail/spritz, aperol spritz and straight prosecco would be great accompaniments.

I'd keep it simple: prosecco, white wine, craft beer. No one I know would be looking for red wine at a summer/spring luncheon. You could add a rose wine, maybe.

Ditto what Sueb said. Although I'm a red wine drinker most of the time and a light Pinot Noir would be welcome, not so much at a luncheon. Rose seems to be the wine of the year right now though so you could be safe with that to satisfy some of your red wine only folks.

DH drinks no wine at all so he would definitely appreciate a beer. I think 3 offerings, plus the non-alcolholic drinks, will be great for the number of people you are having. You just never know what is going to appeal to people on any given occasion, so keeping the selections to a minimum solves the dilemma somewhat.

I would do rose and white wine and beer. Your menu sounds lovely.