I love the Walsh sisters. Angels is one of my favesSilly question but have you read any by Marian Keyes? I hate the way she's written off as "just" a chick lit author but she's bloody good! The Walsh sisters are great if you're looking for a connection with characters. Rachel's Holiday & Anybody Out There? are two of my favourites from that series. You don't really need to read them in order either.
This Charming Man is also really, really good too. I started re-reading her books when lockdown kicked in last March as a comfort blanket.
And mammy walsh obviously