I always thought it’d be cool to take the last name of my future wife (if I ever have one, it’s not really a goal of mine or anything). Not because of issues with the patriarchal norm of taking the husband’s name (although I guess that is part of it), but mostly just because I don’t care much for my last name. Another option that entices me is both of us picking a new last name to share, which would be helpful if I don’t care for her last name either.
Or I could probably just change my last name without getting married.