tbh I think these are kind of essential quality of life changes, maybe you disagree but they'd make life easier for different types of players
Here are my thoughts:
Favourite outfits option
What it sounds like, the ability to click a little star button on your outfit to favourite it, I think some settings accessible from the clothing menu too would be good so you can decide to put favourites at the top if you like, and have a "favourites only" toggle
Outfit tags
Similar to inventions tags, outfit tags would be similar to naming, however they'd be in a textbox under the outfit name and not affect the name, outfit tags wouldn't have to be 1 word like with invention tags, and would be separated via commas with no limit on how many tags you can have on one outfit
The purpose of outfit tags is to make searching for outfits easier, I make a ton of outfits, so being able to tag an outfit as an outfit, an animal, a character, or whatever else would be good for me
For example, a sonic the hedgehog character I would tag as an animal and a character, but a girl scout uniform I'd tag as an outfit, or a chef outfit as a career
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