I’m an EU national working at a big tech in London, UK. What’s the easiest way for me to move to the US? Relocating within my company (L-1/H-1B), finding a new

I’m an EU national working at a big tech in London, UK. What’s the easiest way for me to move to the US? Relocating within my company (L-1/H-1B), finding a new US employer to sponsor my visa? Something else?