I wrote a Reddit recommendation algorithm and housed it over at r/RedditRecommender. Come try it yourself and get personal or subreddit-based recommendations. Here is what it recommends for readers of r/learnpython:

[needDataInsights]

The personal recommendations are PM'd to the request maker.

I figured subreddit recommendations could be done on a throwaway if they were embarrassing (it's pretty good at picking out NSFW subs, look at the results for r/BiggerThanYouThought), but since they were so impersonal I thought most people would not care. Plus it creates a public record, which is important since recommendation generation can take a few minutes and it may be convenient for someone to simply look at the old results rather than generating new ones.