How I made $5K/month online in 2025 without scams or AI spam

Found a legit way to monetize digital products that actually works. No dropshipping, no "AI side hustle" nonsense—just good old-fashioned content repurposing.

I started with a niche Notion template that solves a common pain point (freelancers wasting hours organizing clients). Sold it on Gumroad, then upsold a $20 course on automating workflows. Scaled to $5K/month in 6 months with zero ads.

What’s your go-to legit online income stream?