Reddapi

This gives you unlimited access to Reddit's full archive through a third-party API, which means no rate limits or quotas like you'd hit with Reddit's official API. The semantic search is the standout feature here: you can query natural language like "frustrations with current project management tools" and get actual posts and comments back. Also includes trend analysis with sentiment scores and growth rates, plus subreddit discovery. Honestly most useful for market research and finding what people actually complain about in your space. You'll need an API key from reddapi.dev, but once you have it, you can hit it as hard as you want for competitive analysis or niche hunting.