Since you are returning to film after an interval of time, you should consider more modern and known effective developers. The point made by Gerald is well taken; the emulsions available today are not the same as the ones you are familiar with, and these new films have been formulated and tested with the developers that are currently available.

To my mind the one constant in film photography continues to be D-76/ID-11 which is a formulation that has stood the test of time, for medium and large format at any rate. There are modern formulations of phenidone-hydroquinone developers and you might start by examining some of the better known modern "fine grain" developers. Unfortunately that other standby Panatomic-X is long gone, but there are still a few slow films that you can use to experiment.