book fair listings: https:/www.ptotoday.com//yellowpages/category/books-fairs-and-reading/
I've been looking for this as well! I posted a question before about Learn2Earn, but they do online read-a-thons paired with book fairs. I called them up about it and spoke to...Dave and Caisson (?) about this pairing. Seems like they have some great relationships with book fair companies!
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