Freelance / consulting business ideas
Solo expertise sold by the hour, day, or project. Ceiling is your time × rate.
Read the full guide: how the freelance / consulting model works →Other business models
5 ideas
Solo Consulting / Freelancing
The fastest active-income path on this site — and the one that funds every passive idea after it. Honest about being trade-time-for-money but compounds your network and skills.
Online tutoring (Preply, Outschool, iTalki, direct)
Teach a specific skill 1-on-1 or in small groups via online marketplaces or direct platforms. The only category on this site with effectively zero capital floor.
Twitter / LinkedIn ghostwriting for B2B founders
Write Twitter/X and LinkedIn content for B2B founders, executives, and operators. $3-15K/month per client; high-margin B2B service with capital floor near zero.
Fractional executive — selling senior expertise part-time
Sell 5-15 hours/week of CTO / CMO / CFO / COO-level experience to multiple companies simultaneously. The highest-leverage online services category for senior operators.
eBook and book ghostwriting for executives and thought leaders
Write full-length books for executives and founders who want a published book as a brand asset. $20-100K per project; different unit economics from social-media ghostwriting.