What kind of alcohol is dark, rich sweet vanilla vibes?

Hiiiiij Im really just wanting to find a drink(mixed) or a type of whiskey or alcohol that has a flavor pallet as described: sweet, dark (think laugers versus coors light beer– kind of like how straight espresso has more flavor than an iced coffee) and something resembling vanilla or brown sugar. Maybe i should just make/mix it myself? I’m really new to this, this is my first post here! 🙏