Beer and Wine with Covid

I wouldn't include it in your invitation. You can probably get a good idea of alcohol preferences via word of mouth.

Can your bartender pre-pour disposable glasses of wine to hand out?

We had bottles of wine out for people to take to their table so people wouldn't be pouring out of the same bottle

If you're buying the alcohol yourself (from a liquor store), you should be able to return anything you don't open. Maybe just have a nice variety on hand and return what is not used. Also, I'm very surprised that you need to use single-serve wine, but you may be able to buy it in bulk at a discount. Or maybe the wine drinkers each get a full bottle to drink from all night? Then they have to switch to beer or non-alcoholic drinks if they finish the bottle. But I guess this idea only works if you know who would want a full bottle, otherwise you'd have to buy a bottle for each guest and then return what wasn't used...it really sucks to be in this situation! Hope someone has better suggestions than me! Haha.

Are you having a bar tender or self serve? If you are doing self serve you can put hand sanitizer in front of the wine bottles so guest can sanitize before touching the bottles.

If you have someone able to serve the drinks there then you don't have to worry about single serve wine