You might consider our all-in-one marketing platform which includes: Reviews, Wishlist, Loyalty & Rewards, Social Login, etc.
Basically, it may replace a few apps.
Also, you might consider Klaviyo and Searchanise
P.S. Btw, we do work with lots of fashion shops
You might want to consider displaying sizes under the product thumbnail on your collection page. This helps customers see what you have available while browsing.
We just launched an app that might be of interest:
Let me know if you have any questions, happy to help.