which bootcamps are best?

This question gets asked often and as usual there's no simple answer as it depends on you. How much experience do you have? What stack do you want to work in? What are your goals (a job as a SWE, a job in another field, to learn) and what type of company do you want to join? You can narrow your search pretty quickly to a handful of consistently well reviewed bootcamps, but there might be smaller bootcamps - or other things other than a bootcamp - that might be ideal for you depending on the above. Without knowing the answers to the questions above though you can't really narrow it down as different bootcamps do different things for different people.