Wardrobes created in Marvelous Designer and in Blender with Simply Cloth Pro and products. 
I painted them in Adobe Substance Painter and used the Blender Export settings. 
I made custom icons as the asset default icons are not very exact. 
Each type of clothing has its own category. 
Hats pants shirts etc. 
With free character creator addon for blender and AccuRig you will have large collection of clothes to work with. 
Use the clothes for base starters and alter them into something else if you like, Most of these you should be able to re-import into 
Marvelous and redo the 2 layout and simulate on your own character and of course the same for Character Creator. 

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Update 5/11/23 
replaced or fixed several models that were high poly instead of low poly or lower poly.