Making "clothing" involves modelling with vertices and edges and faces (polygons). There are a variety of programmes out there to do this in, ranging in price from free to hideously expensive, and in ease-of-use to quite intuitive to a bit knobby (vertical learning curve).

A lot depends on your budget and more importantly, time and patience in terms of learning how to model in 3D. Based on some experienced modellers who have offered advice in this and other forums, I'd suggest having a look at Wings3D, for which there is a lot of help available and which is fairly intuitive to use. I am trying to tailor my recommendation to what you've expressed as needs and not to what I'm most comfortable with.
Also, you might have a look in freestuff... you might find something close to what you need, then you would just bring it up in your modeller and tweak it to your needs.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks