Things to look out for when planning to relocate

Bare with me if there's things I don't do correctly, I'm new here.

So I've ambitions to try create another life outside of my home country, let's just say any country for the time being but I know there's more info or untold stories when it comes to making that move aside from the usual visa application / get employment offers and all of that.

If anyone has had that experience, do chime in, I could use the knowledge and tips.