Oh actually, that reminds me. @DjCoco if you’re willing to entertain yourself with some kana-only books, I can “recommend” the items from the top of the list here: Here, Have a List of Aozora Books by WK Level
The first one, かいじんにじゅうめんそう, is an absolute “treat”. You will see maybe a total of 10-20 different kanji across the book. 