Initially relied heavily on Tavily, liked it, but as soon as traffic hit, the bills just went to the moon. Started looking for alternatives. SerpAPI turned out to be just a reseller (expensive and crazy latency), Bing API moved to Azure and became some overcomplicated corporate thing. Eventually decided to test Search Router API, their search and extracted content delivery work out of the box, and for prod volumes you can request custom rates from sales
If lowering web search costs is relevant for anyone's projects - this option turned out to be pretty good. By the way, it searches really well across European and other non-English segments, might be useful