Autocomplete as a Service - The domain name aaas.io is being parked on Park.io. Contact the domain owner to make an offer right now...
Algolia SuperSearch - Find every commercial ever aired during the Big Game!
Typesense Cloud - Open source alternative to Algolia, now with a SaaS version
Video Search for YouTube - Search any YouTube video like a document.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.
Deepgram - Search engine for speech