As a starting point, I sometimes will look at a frequency analyzer to see if there are any overly weak or strong areas in the spectrum. I monitor through iZotope Ozone's equalizer, because it has the "6 db guide" line you can overlay as a rough target.
With my gear and in clubs, where I usually record, there is normally a "hole" somewhere in the midrange. I find myself often making a small, wide boost in that area, generally something like 1 or 2 db (I don't actually use the Ozone EQ for the adjustment but you can use whatever you like).
I may make other adjustments as needed, but many times one gentle correction makes a large improvement in my recordings.