Yes, all books have families but these are particularly lovely and often showcase larger families and many close sibling relationships.
Many of these books make for great read alouds!
All of a Kind Family – Sydney Taylor (7+)
The Moffats – Eleanor Estes (4+)
The Saturdays (and the Melendy Quartet) – Elizabeth Enright (6+)
The Happy Little Family (up and the down the River) – Rebecca Cauldill (4+)
The Children of Noisy Village – (6+)
Happy Times in Noisy Village*
The Family Shoes – Noel Stretfield (8+)
The Penderwicks (for older (9+) audiences)
The Vanderbeekers of 141st Street (9+)
The Mitchell’s Family Series – Hilda Van Stockum
*There is a Santa Clause spoiler in Happy Times in Noisy Village! It can be edited out/skipped when reading aloud.