Clifden is always worth a couple of nights as a touring base for the Connemara.

.. If you have time..

However: From Kenmare I presume round Dingle? then Ennis makes more sense than Galway. Next a day for west Clare before another night in Ennis or on to Galway. No point making a tight fit even tighter just to tick a box Clifden is over an hour west of Galway going straight without any of the possible stops. it also adds that time to the trip back to Dublin