What are other good areas where semantic search can be useful? I've been toying with the idea for a while to play around and make such a webapp.

Some of the current ideas I had:

1. Online ads search for marketers: embed and index video + image ads, allow natural language search to find marketing inspiration. 2. Multi e-commerce platform search for shopping: find products across Sephora, zara, h&m, etc.

I don't know if either are good enough business problems worth solving tho.