Don't use toxic epoxy fillers if that's what your thinking. Stick to traditional pumice/eggwhite. Now I'm no expert, but I've experimented with the traditional pumice/egg whites. It can be removed, or re-touched...with the expoxy, or other heavy duty industrial toxic products, there isn't a great deal you can do to fix mistakes, other than spend a great deal of time leveling, buffing etc...
But the real honest truth is, it's going to take a lot of time no matter you use. The traditional methods are going to yield great results. Just take your time.
The simple option would be to just polish over and leave the pores more natural state. But go ahead and do it. There is no magic, just do it. The reward for your labor, and I mean hours and hours...a nicer finish than you had to begin.