Other ideas for making money / getting free money:

Email Marketing and giving good content to your email list with the occasional great associated offers that are fine tuned to your niche.

Savings

• regular savings. 
• Raiz / accorns passive savings that everyone should use.
• (Get paid for saving, and get paid for referring friends)

Crypto 

• market conditions and direction outcomes
• Strategies

Shares

• Trading
• Charting
• Fundamentals

Business

• earning extra income from home
• Running a business – management / ownership 
• Business tools that help others
• Deductions and tools that can save money

Property

• residential property
• development sites