Ask HN: What are some interesting startups that have good affiliate programs?

Hey everyone! I've been writing an tech/startup-related blog and a Medium publication for awhile, and they seem to be taking off, so I'm looking into ways to make a little profit from the content I'm creating. It would be cool to find some interesting startups/projects that I could promote, and receive a bit of money for the clients I'm sending.

I want the startups to be genuinely good, interesting, and worth sharing with my audience. Do you have any recommendations? What projects do you use and spend money on?