Many of the paid tools (usually enterprise) tools offer valuable automation capabilities for technical SEO, but they can cost a fortune. Furthermore, many of them employ a pricing strategy where 1 subscription covers just 1 site. Which means if you want to track multiple clients and a couple competitors, it becomes unaffordable entirely. But... you could make your own automations, with existing tools like Screaming Frog or with a little vibe coding. Anyone can do it, even non-coders.