Morbidly A Beast:
Yeah minimalist with a bit of flare I just wanna look nice rn all that fits me are a pair of ripped sweats and a few muscle shirts I wear around the house lol
Ah, so you two have similar tastes.
My partner has some nice, simple shirts and sweaters. They are a mix of neutral colors and bright/bold colors and one or two graphic tees. When it's cold, he'll sometimes pair a white or black shirt with a colored cardigan or a nice jacket. If you wear a warmer shirt and leave the jacket unbuttoned, you can keep it for longer.
He tends to buy pants that go with everything. He tucks his shirts into his pants because then he can get away with buying smaller shirts. No need to have a shirt that covers your entire belly (he's belly heavy) when your pants do most of the work.
Also, don't be afraid to accessorize. A nice watch can make any piece look fancy. You don't strike me as someone who likes to wear jewelry, so a simple, tasteful watch will suit you best.
Also, don't be afraid to buy oversized clothes. If you have no interest in slowing down your gains or constantly buying bigger clothes, oversized clothes will last a little longer. I know a lot of streetwear tends to be oversized and simple.