Brokering an online service is a money-making idea I’ve personally had experience with. In my endeavor, I used contractors that I trusted for website designs. I found clients via Upwork, would use the contractors’ services to create the design, put finishing touches on the work they turned in and turned it over to the client. This worked well because my background in copywriting and conversion rate optimization perfectly supplemented website design.
Another way to utilize your talent and business skills is to run corporate workshops online. Businesses are always looking for unique ways to help educate their workforce, and if you can package your talents into a day or half-day long session, you can sell that to companies all over the world to make money online. Start by building a portfolio and then reaching out on LinkedIn to influencers at relevant companies to see if they would be interested in you teaching their team.
Great list! I have another to consider that I personally have 35+ years experience providing. Clean up litter outside commercial properties on foot using inexpensive hand tools. It’s almost as easy to do as going for a walk! I started doing this as a side gig in 1981 and soon grew it into a profitable full-time business. I share my experience in my book, Cleanlots.