Unarmed fighter/boxer build

Hi everyone,

I’m looking to create my second character in DnD (I’m still very new) and I’m trying to create a character that’s basically a boxer/brawler that will mostly fight without any weapons. I note we have a level cap of six, so I would think I would do a combination of monk/barb but would take your advice and how I should build my stats and what to focus on.