Could it be an alternative to travel to US via Canada as it seems US ESTA/VISA
What do you mean? Do you really think there is no CBP/passport control at the land border?
Make sure she realizes that in this situation, there will be no path for her to adjust status while visiting. The sibling category is numerically limited, and her wait time will be around 25 years.
You will want to apply for EAD/AP though. Aside from the work/driving issue, you would need AP if you need to travel home for an emergency (and return without abandoning your AOS). AOS can take >one year.