I think the thing you need to figure out first is how you define "tech". Do you want to get into software development or the IT side of things? There are a lot of opportunities in both areas but you may need to narrow down your path a little to better focus your time and resources.
That SV Academy site is weird. I get the sales and marketing classes. But I don't know what they mean by "customer success". Are they talking about customer relations management, tech support, etc.? It not defined what they will teach you and if you can get a job.
And Coding Dojo is charging over $15,000 for their courses. At this price, I would consider community college courses. A lot of cities also have "workforce development" partnerships through community colleges that offer courses for entry-level "tech" jobs. I would see if that option is available before a boot camp.
There are also a lot of free courses online to help you start. In this thread, people mention accessing LinkedIn Learning using a library. Check if your city's library supports that. And check the libraries in the cities of friends and relatives too. Tell them to pass that card/PIN to you.
freeCodeCamp teaches coding through their website. Their Youtube channel goes beyond coding and has courses on cloud, website, machine learning, building websites, etc.
For me, I started learning about coding on my own out of curiosity. I decided to switch to the IT side because that career path made more sense to me. I just the certs that made sense to me, created study plans, bought some books, and stuck to the study plan as much as I could. I wasn't going to pay $15,000 for a boot camp.
