Legging, tunic top and shirt outfit

[Notenoughdollarbucks]

Hello, I’m almost giving up on clothes, but also aware that autumn is coming and nothing I have fits.

I’ve sort of narrowed down a comfortable mum uniform of leggings (I have sound some nice thick good quality ones) and would like some long ish (bum length) long sleeve tunic tops and most importantly some shirts to wear over the top.

I keep seeing fb and insta reels of these outfits but all US content. Can anyone tell me where I can find nice soft warm, oversize shirts pls? To be clear I don’t want a coat/ shacket thing. Just an indoor shirt please!
High street budget

Thank you

Sainsbury’s TU for shirts, might have some oversized ones or you can size up (watch out for the shoulders and arms being too saggy if you do that) or the Men’s section.
M & S usually have their linen shirts in stock all year round.
Seasalt for tunics. You might not need a shirt over them depending on fabric/style.