Hi - I got laid off from my tech job where I had an HSA. I was contributing the max $$$. Now that I'm unemployed (and might be self-employed for a while), what are my options for continuing an HSA? Should I just sign up for one as individual, are their good/bad ones? What are some things I should watch out for? Can I rollover like a 401k?

Don't want plugs for specific companies, just looking to understand what questions I should be asking and if there are any major flags.