Any time I want to search reddit, I use Google and put “reddit” at the end of the query (I know about the site: query, but there’s really no point to type the 5 extra characters).
Same tactic to find genuine content, but I find Google’s results to be better than Reddit’s own search.
Edit: I'm often surprised how search engines fail to exclude obvious SEO farms. Especially looking at articles about stock, you frequently just find a ocean of what send to be clearly autogenerated articles.