There’s a lot of places in Europe that have an ‘accident of birth’ path to citizenship (jus sanguinis vs jus soli). Here’s the ones I found:

• If you’re of Jewish ancestry and your family fled due to the Holocaust, there’s a number of European countries that will return your citizenship. Unfortunately my mom’s family is Russian Jews.
• Ireland, if one of your grandparents was a citizen. This applies to my father, but not to me
• Luxembourg (where I proceed to dox myself, lol) if you’ve got a direct line male lineage back to Luxembourg between 1850 and 1947 (or male until a female born after 1970-something, Google Luxembourg article 7 citizenship). This actually does apply to me and I know more about it, but I’ve barely started the process because uprooting my life to flee somewhere safer again is a truly miserable prospect, and the choice of agencies are either a non-profit that I can afford and maybe have some money left over to relocate but they’re slower and they don’t seem keen to deal with my document mismatch due to being trans and from Florida, or a much faster, more trans friendly and expensive business.

Some good info below. If you have no lineage to anywhere in Europe, there are other options depending on your job and education level (not all encompassing, for sure)

If you get hired for a skilled labor job almost always it’ll result in a visa

I have, but I don’t mind sharing again. Basically, an accident of birth.

https://www.gov.uk/apply-citizenship-british-parent/born-before-1983

I wish I had better news for others.