What should I buy?

I’m celebrating my best friends 21st birthday this Friday (it’s just us and we’re both bringing bottles) and I already bought a bottle of apple E&J because we discussed what we’d like to drink that night. She also decided she will buy a bottle of Tito’s (some lemonade liquor? I only had it once) on her bday. Now, my older sibling has offered to buy us another bottle of my choosing so we can also try something new. I kind of want something that will be another alternative besides brown liquor for shots and mixers. Any ideas?