[Ideas] Helo for a Twin brother build

A few years ago I played a Arcane trickster/Bladesinger/ Winter Eladrin/ Investigator, really fun character who was looking to investigate the death of his adopted father. Well he had a twin brother who left and started his own life. Since that story is done I want to use his brother as a character. So what would be the opposite of a Bladesinger Investigator?