Hey I did not find anything up to dateSome threads were posted here on BHW which contained gov and edu links you can go for searching.
itaes.edu.mx
icesi.edu.co
unespar.edu.br
tufts.edu
ufpel.edu.br
unh.edu
upel.edu.ve
unitv.edu.my
gettysburg.edu
colegiosentli.edu.mx
yale.edu
msu.edu
ym.edu.tw
torgi.gov.ru
huduser.gov
Almost all of them are not workingCheck the below link one of the BHW member recently shared the edu list.
https://www.blackhatworld.com/seo/63-edu-free-backlinks.1088698/
Opened up RankerX and pulled their EDU/GOV site list
Code:itaes.edu.mx icesi.edu.co unespar.edu.br tufts.edu ufpel.edu.br unh.edu upel.edu.ve unitv.edu.my gettysburg.edu colegiosentli.edu.mx yale.edu msu.edu ym.edu.tw torgi.gov.ru huduser.gov
Also posted some on this thread couple days ago,
https://www.blackhatworld.com/seo/free-backlinks-from-edu-gov-sites.1093671/