" (The Roots of the Names), a classic work of practical Kabbalah by Rabbi Moses Zacuto.
Otzar HaChochma (requires login/fee) – Not free, but the definitive PDF repository. Not a "hot" free link for most. shorshei hashemot pdf hot
A detailed list of angels governing hours, days, and Psalms. This is the most "hot" section for those seeking spiritual protection (e.g., Psalm 91 meditation). " (The Roots of the Names), a classic
Rabbi Moshe Zacuto (1625–1697) was a Portuguese-born rabbi and poet who lived in Amsterdam and later Italy. He was a contemporary and potentially a fellow student of the philosopher Baruch Spinoza The Content: " (The Roots of the Names)
TorahBox.net / Seforim Center – Occasionally has OCR PDFs. Search their database.