I just came across a cool idea from some guy on TikTok. There is a site called http://www.copy.ai. The site helps writers with ideas to produce ideas to write about. If you open an account (there is a free trial version), you can provide them with your product along with a description, and after 30 seconds, you will be provided with a whole bunch of ideas.
These ideas are often just things o consider writing about. Often, the ideas to write about are actually great ideas for new side-gigs and businesses.
Play around with it.
There is no catch Side -Gigster wants users of services and providers of services. Side-Gigster believes that bring people an business together can only generate good things for all involved. If you are working as a free lancer I am willing to bet that you can provide the BEST help and advice to someone who is looking to start out. so post some content show your work. People on the site see your work, you get notices and close deals.