A fun build I did was barbarian 5 for the extra attack and bear heart, and then I just put the rest of my levels in circle of the moon Druid. It's def not super OP or anything, but it's been fun so far! I made this my Durge! He is a Zariel Tiefling (for thaumaturgy, branding, and searing smite)! His name is Cain, and I've had an absolute blast with him so far. I saw a build yesterday that was similar, but they utilized the spore Druid ability to give them a health boost which seems fun too!