I don’t see the chances of the human species settling on another planet in our solar system due to the lack of the necessities of life that Earth provides. We cannot pack our existence in a suitcase. If we find a planet lightyears away that has our necessities, and we find a way to get there and self astain (which seems to be generations away) I am pretty much convinced that this is what we’ve got.
We are so close to our own downfall it won't happen if it could.
T-minus 5 billion years and counting.