i know there are processes you must follow and not just any country will let you in, so what must someone look for when it comes to finding a new country? i might go to the netherlands because i wanna go there, but it may not be allowed given the circumstances. i ask because someone was asking what country should they live in and people were arguing over it.
To enter, you need a visa. They’re timed permits to enter countries for a specific purpose.
There are travel visas for a short time and there are work visas that are longer time and allow you to work. (you are not allowed to work with just a travel visa).
Then the process is different per country. The next step is “residency” and then the next is applying for citizenship. Each country has different conditions for when that’s possible and how quickly.
As a rule of thumb, if you can get a stable job, or you’re rich they usually let you in and let you stay. Sometimes there are special recruitment programs that you can look up at the local embassy or under search terms such as “migrating to [country]”. Those that are looking for immigration usually advertise the ways to do it.