Try Weston EIWT. South West of Dublin.Nice little airport with a control Tower
Weston is anything but quiet, very busy indeed. But it has a nice long runway and it welcomes all comers.
There is a nice quiet airfield nearby, with two concrete runways, especially quiet at lunchtimes and weekends. But the military in Baldonnel don't like visitors dropping in on them.
There is a VERY quiet airfield near Weston called 'Dolly Grove'. It has a lovely tarmac runway and looks really nice. There's even an AN2 sitting there. But it's very private, so private it doesn't appear on any chart.
That's it. The next nearest hard surface runway is 50Nm away in Abbeyshrule.