Your child says books are boring, so here is a shelf of stories about ordinary children living ordinary lives: no magic, no quests, just a child who feels a lot like yours. Any one of them works on its own. Pick the child whose everyday life feels closest to your own child's, and start there.
What they share is a feeling: a child opens one and thinks, that's me, or that's my family, or I've had that exact terrible day. So pick by whose ordinary life sits closest to your own child's. Clementine and Ramona and Billy are the funny-mishap, always-in-trouble children. Ryan Hart is trying to be sunny through a tight-money year. Opal is the new child who's lonely and missing a parent. Mia is running a motel and meeting the world's unfairness head-on. It's a shelf of mirrors, so hand your child whichever one they'll see themselves in first.