Tiny Acquisitions - Tiny acquisitions is the only marketplace for internet business that are priced under $5,000.
IdeasAI - OpenAI-powered startup idea generator
Microns - Microns.io is a marketplace to discover the best micro-startups for sale.
Ideas Grab - A list of +3400 ideas that you can get for your projects.
MicroFounder - It's possible for a solo developer to build a profitable microstartup to pay the bills and live life on their own terms.
Startup Stash - A curated directory of 400 resources & tools for startups