[Help] Can someone help me with selling custom design order tshirts?

i am thinking of selling custom design tshirt on my social media followig of around 75k followers without the need of caring about manufacturing and shiping of the product.

can anyone help me . comment or pm me.

TIA

There are lots of methods on here about this at the moment.
I have been reading them myself as I am in the process of doing this myself.
Use the search and loads will come up. Read all of them as they all give something different.