Cheap Shot recommendations?

As a student in Ireland who’s looking for work at the moment paying €9 for a shot of baby guiness on a night out isnt very affordable lately. Shots that only use one type of alcohol instead of a mix of liquers are much cheaper, for examle, a tequila rosé shot is only €5. But tequila rosé tastes like shit. Before anybody says just vodka, most people i know refuse to shoot straight vodka, or (rightly) whiskey. Any recommendations for single alcohol shots that have a decent % ?