Teen boy shirts...please help

[Tauranga]

Hello, my son lives in hoodies and tracksuits. We managed to find him some trousers that he will wear, that are not trackies..... and he mentioned he might buy a shirt! I am hoping he will, so where should I look?
All his clothes are nike, from trainers to hoodie and back again.
I have no idea where to look....please help before he changes his mind.

@Tauranga how old is he? Zara do boys stuff my sons liked before they went full sportswear. It also depends on his shape, I find Zara suits my skinny sons but the broader one never found anything there. I'd be surprised if your son chose to wear shirts casually, do you need him to look a bit smarter for any particular event?