In Melodius Drum Victorious in All Directions, the extensive Dorje Shugden kangso, following the Praise to Manjushri and Ganden Lhagyema, the practitioner does the self-generation practice of either Heruka 5-Deity, or Yamantaka (Vajrabhairava). What follows is a short list of resources for either of these Yidams
HERUKA 5-DEITY resource
The only commentary on Heruka 5-Deity I've ever read, besides a transcript (unavailable to the public), is the book Source of Supreme Bliss, available from Dechen Ling Press. This is an excellent commentary on the generation stage by Ngulchu Dharmabhadra, and an excellent commentary on the 5 Stages of Heruka Completion Stage of Master Ghantapa by Panchen Losang Chokyi Gyaltsen.
VAJRABHAIRAVA resources
- Yamantaka Cycle Texts Vol 1 & Vol 2 (available from Tibet House)
- Yamantaka Commentary by Ven. Gelek Rinpoche (transcriot available for download)
- Roar of Thunder (available along with many Yamantaka resources from Dechen Ling Press)
- Ocean of Indivisible Method & Wisdom by Geshe Acharya Thubten Loden
- Meditation on Vajrabhairava by Je Pabongkhapa
- Various other resources mentioned on Yamantaka.org