Best path into the United States?

Too be quite honest, I’m not sure what I want to be just yet, but I’ll have to decide soon so I can focus on it.

I just really enjoy biology/chemistry aswell as the human anatomy.
My mother is an MD and two of my sisters are in Medical School. I watch surgeries sometimes and I find them very fascinating, but I don’t have a burning passion for it, or anything else really.

Note: I’m not great compared to my other subjects in Biology/Chemistry, but I still have the highest grades.

If I peruse a MD degree in Canada, would I get the possibility of working in the US? And would I get a job.

Karolinska Institute is ranked nr. 9 of all medical schools in the world according to topuniversites, but that isn’t saying much because it has very little prestige outside of Sweden.