Books

Digital Minimalism (Cal Newport)
Heart of Christ (Thomas Goodwin)
Holiness (J.C. Ryle)
Solitude Improved by Divine Meditation (Nathanel Ranew)
Soul Recreation – The Contemplative-Mystical Piety of Puritanism (Tom Schwanda)

Helpful Sites

Albert Barnes Commentary on the Bible (StudyLight.org)
archive.org
Charles Spurgeon Sermons – spurgeongems.org
Sufficiency of a Standing Revelation (archive.org)

Ministries

Ligonier
Banner of Truth
Reformation Heritage Books