I drink a lot of plain tonic water with slice of lime (and sometimes some juniper berries, they definitely add to the gin-ny taste), either all night if I am driving, or like my 40th when I was going from 5 (straight from work) until early hours so alternated G&T with plain T all night.
We've also started to enjoy seedlip with tonic.
Proper elderflower cordial with sparkling water is very refreshing and grown up.
In terms of beer, we like:
Wicklow Wolf's AF pale ale (grey tins)
Peroni
Erdinger
Leffe (only found in Netherlands, can only get alcohol version here)
Heinekin OO was ok and a lot better than Bucks and Kaliber used to be, but a little "tinny" as some have remarked
When PG, I used to look out for lower % wines, and allow myself 1 small glass per week (under GP guidance), on the basis that a relaxed MTB was far better for Baby than a stressed out MTB. (Pretty stressful job at the time).
We also had visited Cuba while I was PG, so alcohol free mojitos were nice and refreshing (just the mint, sparkling water and no rum).