I love, love, love that the first piece of advice is to consult with librarians. Yes, yes, a thousand times yes! I would add that consulting with teachers might be a good idea as well. However, the number 1 thing I would suggest is to have parents READ. Helping kids find books requires some work, some knowledge of what is out there. Relying on lists and levels and such is not the best way to find the right book at the right time for any reader.
All too often, lists are books out of any context. Here is a list of award winners. What awards? Decided by what group? What are the criteria? Here is a list that someone on Goodreads thinks all kids should read. Who is this person? What are his/her credentials, experiences, etc? I read a post today about the 50 books every house should have. The problem is that the list included Cat in the Hat and The Perks of Being a Wallflower. Lists that cross so many age ranges can be confusing, too.
Take a trip to the bookstore (or the library) with your kids. Let them browse. Let them sample. Let them select. Read aloud to see if a story might connect. A recent article indicated that only about 1/3 of all parents read aloud to their kids on a regular basis. How sad that that lovely ritual of parent-child-book is not happening for all kids. So, here is what I advise: seek advice from other parents, from educators (teacher and librarians), and from kids themselves. Don't worry about levels and lexiles and lists. Don't worry about awards: the best award a book can receive is the love of a new reader.