I just found that Follett has provided a search/category that allows one to see books that align with the UN's Sustainable Development Goals (SDG).  I may be late to the party on this, but wanted to share. I work in a middle school who ties in SDGS into 6th and 7th grade social studies, and any tool that helps me look at books through the SDG lens is helpful

To find in Follett: 

Click on Classroom Solutions - 

look at Browse By - Diversity, Equity, and Inclusion

Scroll down to see the UN SDGs