boshi
Freakalicious
Just last month I asked Kai to sell me everything on the full TLoU figure sets he made and sold a few years back, but he said he is now only selling Joel's head and Ellie's backpack, so I'd be surprised if he offers you any other TLoU items. Of course it wouldn't hurt to ask!
Also, before I was able to purchase an Ellie head sculpt and shirt from a member of the onesixthwarriors forum, I did find someone making an Ellie shirt on Etsy: https://www.etsy.com/listing/271908530/16th-scale-last-of-us-ellie-inspired?ref=shop_home_active_6 That's a link for a shirt and jeans set, but she was willing to sell me the jeans separately for half the cost, so she might sell you just the shirt.
Just a quick note. I actually picked up the shirt from her on Etsy but its a little too small I find. It's meant for a smaller (25cm-27cm) obitsu body so unless you are using one of those bodies it will likely be too small.