Shoes are a bit difficult because they can look amazing in screenshots and then not work in your game at all. I have also found that a lot of high heels push the heel way too far back making it impossible to use with pants. It depends a bit on if you want Alpha or MM shoes, as it's easier to find Alpha shoes than maxis match. With that said, here are a few links:
- https://www.thesimsresource.com/artists/MJ95/ - MJ95 at The sims resource makes lots of Alpha shoes.
- https://www.thesimsresource.com/artists/ShakeProductions/ - Same goes for ShakeProductions
- https://www.thesimsresource.com/artists/SLYD/ - SLYD has quite a few shoes as well.
- https://www.thesimsresource.com/members/Arltos/ - And Arltos
- https://jius-sims.tumblr.com/tagged/download - Juis makes quite a few shoes as well
- https://nordsart.blogspot.com/p/nords-cc-document.html - Nord doesn't have that many, but there are some very good quality Maxis Match shoes to be found here.
- https://www.renorasims.com/cas?Collection=Shoes - Renorasims also has some great MM shoes to choose from