There is a great book I was listening to (audio version of it on Audible) called Craic Baby. It’s the same guy who wrote the Motherfoclóir book. The first 5 or 6 chapters all end with a small section called “A fada can make all the difference” and he goes through a good few examples to end those early chapters. Definitely great book for those with an interest in Irish.
There is also a Twitter account called “Our Dada” and they tweet loads of examples of these minimal pairs so take a scroll back through their posts to see some great ones.
My favourite one is Orla/Órla (vomit/golden princess).