Not long ago my friend Gemma was desperately looking for more books in the All of a Kind Family series, byr Sidney Taylor. The first title is affordable, the rest are overtly pricey. She suggested me the sweet My Naughty Little Sister series.
I was truly lucky to find My Naughty Little Sister and More Naughty Little Sister Stories at PaperBackSwap. They are nice short stories. We are reading them and alternating them with our Grandma's Attic stories.
And listening to Heather recommend books to another mother of a girl, we were reminded of our Betsy Tacy books, so we requested them from the library, and also our Milly Molly Mandy which that friend introduced us to, and gifted us with. My friend Marvan, who talked to us about the Martina books, says her two boys love them. Though this selection may seem very girlie, it does not have to be the case, I believe they will delight boys too, specially if alternated with some of your boys favorites.