I run 5 businesses right now. Two of them are AI tools, I like one (business A) better than the other (business B. both new)
The third one is a blend of pre-developed WordPress plugins and custom API integration service for WordPress users. Made about $2000 till now after it launched around September this year. Not very active on it, if we get hired for custom development, I jump on it asap.
The fourth one has generated over $100,000+ over a span of two years and still making the doe while providing its service to my customers. I do not make efforts at promoting it as it drains me up too much quickly and it´s rather kept super stealth and grey hat now. It gives me the biggest headache.
The customer satisfaction I get from business A is 1000x way higher than all other four products combined together and I like it better for the fact that it literally runs on autopilot and gives me less headache. I got my first two users onboarded just within three days it went live on Reddit. Made less than $100 as it literally just launched this month while I am onboarding users, testing and yeah. It´s solid, I love that users love to use my tool and genuinely find it useful.
I think as I build more cool stuff I realize I am capable of making them high quality as this is important for customer retention, contrary to the fourth business which did $100k yet had low customer retention and drains me out, making promotion efforts go down the drain too quickly. All the businesses were launched this year except the $100k biz, digitally of course.
The fifth one is a health and beauty affiliate site recently launched about two months ago, got about 2k content, of course with AI humanized with a degree of human supervision. It hasn´t earned me a dime yet as I need to do crazy SEO since it is a fresh domain. $0 made
From what I see in these forums, most people running multiple automated businesses are usually managing 2-4 max before things start falling apart, because even with automation you still need to handle customer issues, payment problems, content updates, and platform changes that break your systems.
The folks claiming to run 10+ businesses simultaneously are usually either exaggerating, running very low-maintenance affiliate sites, or have most of their "businesses" generating almost no revenue. Real businesses with actual customers require way more hands-on attention than people think, even with solid automation in place.