There is a list of the most fundamental Ramban al ha Torah commentaries which someone has compiled (I uploaded it here), sorted by parasha, with a short index on the last page.
Does something similar exist for Rashi's Torah commentary? It would be helpful to someone able to dedicate a few hours a week to learn Rashi in-depth, but without the time to do it on all Rashis.
I realize defining the "most important" Rashis is difficult, it might be e.g., the more fundamental ones, the most often quoted, the most learned. If someone prepared such a list, I'd be interested to look at it and review whether it fits the need.