Whoa! This list is massive. There are so many awesome side hustle ideas out there. Thank you, Nick, for bringing so many to light! You have done a lot of research here and it shows! This is a topic I love to talk about myself. I even have a list of side hustles for millennials to start this weekend here: https://missmillmag.com/career-alternatives/7-easy-side-hustles-weekend/ I would love for you to check it out.
Ghostwriting pays pretty well, and if you're talented at researching and creating great content within a certain subject domain, you can quickly build a roster of high-paying clientele with this business idea. Ghostwriters like Jeff Haden have created very lucrative careers for themselves by writing for business executives and CEO's—and Jeff also started his ghostwriting career as a side business idea outside of his full-time job as a factory manager. Listen to his interview with me on The Side Hustle Project (podcast) right here.