Develop stock music/sound effects: Create royalty-free audio for apps, videos, or games. Platforms like AudioJungle allow passive earnings.
Sell lesson plans online: Teachers can design curriculum resources for specific subjects and platforms like TpT.
Data annotation: Companies need categorized data for AI. Become a remote worker labeling images or text.
Create a mobile app with in-app purchases: Develop a unique, low-maintenance utility app and offer paid features.
License your voice for audiobooks: If you have a captivating reading voice, platforms like ACX connect you with authors.
Sell 3D printable models: Design unique 3D models and sell them on platforms like Etsy or Cults3D. Passive once the model is uploaded.
Become a stock photographer for microstock: Capture high-quality, everyday photos and sell them on platforms like Shutterstock or Adobe Stock with a large customer base.
Invest in P2P lending for niche markets: Consider peer-to-peer lending platforms focused on specific sectors like renewable energy or real estate.
