The Bayerische StaatsBiblioteche is an excellent source of digitized books from all periods. They are up to 39,137 titles and adding more facsimile editions daily. The great thing about this site is you can download entire books in pdf. I’ve provided links to a couple of works that the Reformed community could greatly profit from. Martyr’s commentary has an English edition but Zanchi’s work needs to be translated for the benefit of those who are not proficient in Latin – it would provide a great source of scholastic learning for the laity and scholar alike. Anyone interested in the Reformed acceptance of the classics and Greek philosophy and Scholasticism should check out the following books.
Peter Martyr Vermigli, Commentary on Aristotle’s Ethics:
Girolamo Zanchi, On God’s Nature: