Finding keywords for a product category that technically doesn't exist... yet?

I'm developing a product that auto-summarizes call transcripts, YouTube video, basically anything with two or more people talking. A good number of seed-stage funds, potential users, etc. I've spoken to tend to bucket the product with transcript-only services like Otter, REV, etc. since auto-summarization is a nascent (and painfully difficult) space.

What would your SEO approach be for a newer space like this? Most of the results I get on Google around the topic of summarization are articles on how to manually summarize meetings, podcasts, etc.