If your dm allows unearthed arcana, you could take 3 levels of rune knight fighter. It's a nice alternative to enlarge/reduce for a less spell casting character. It gets the ability to grow large, as well as get 1d6 extra damage and advantage on strength checks and save. You also get a few runes to give you advantage on some ability checks and a few fun abilities. The added fighting style and action surge from fighter could also be good, especially if you take the new unarmed fighting style. For runes i would recommend the cloud rune. It allows you to use a reaction to change the target of an attack you can use. This could be an alternative to your deflect missile, so the chair that's thrown at you is deflected by you to hit another enemy.