I have twin boys in Year 1, one at probably the lower end of progress for this point in the year and one at the higher. They are both bright but one is studious and one is not.
My less studious son adores Reading Eggs, Oxford Owl and is adoring reading all his old bedtime story picture books to us all. He can get through the Usborne Young Reading Series Two books and loves them. He loves Usborne non -fiction.
My more accomplished reader loves the Usborne books as well. He reads anything, but likes pictures and doesn't have a huge amount of stamina yet so we steer clear of 'proper' chapter books, although if I'm reading one to him at bedtime (Gobbolino at the minute) he'll read a few pages.
Lately he's read The Enormous Crocodile (long but simple language), My Little Pony and superhero books, Dorling Kindersley and Ladybird Young Readers, The Worst Witch, Claude in the City, Happy Families.
Please Mrs Butler is a huge favourite as are any of the blue bananas books.