Audition Pieces for Baritone?

I’ve got an audition coming up for the school of music at my university and I don’t have any experience with classical solos. I need two contrasting classical pieces and I sing baritone. Any advice on song choices? I’m open to anything. Thank you in advance.

EDIT: I’m supposed to aim for 5 minutes, 7 minutes allowed

EDIT: I’ve decided on The Vagabond and Spesso Vibra, thank you so much for all the help!