Sweet alcoholic drink recommendations??

Me and my boyfriend have very different tastes when it comes to alcohol, I usually like beer such as kilt lifter, blue moon, and some liquors such as vodka, and whiskey.

He HATES anything that isn’t sweet, he basically likes his drinks to have a very minimal taste of actual alcohol.

His birthday is coming up and I wanted to throw a party for him, but I have no idea what beverages to get! As I personally don’t like sweet alcohol I dont know what tastes good or not, any suggestions??