• Amazon Kindle Direct publishing — make money off of your published ebooks
• Stocks . Please don't just hop in. Do your research first.
• Money from hobbies and crafts
• Real estate investing
• Writing blogs or adding content to platforms that pay per-view. Content creation is big right now.
• YouTube videos. Let those views make you money.
• Create an app. It's easier than you think.
• Know a lot about something? Create a course.

The possibilities are endless. Take your time and find what works for you.