Start with high-confidence shi'a islam books, then narrow by subgenre or adjacent topics.
Shi'ism
Heinz Halm, Janet Watson
The Shia Revival
Vali Nasr
Hezbollah
Dominique Avon, Anayis-Trissa Khatchadourian
Islam in Practice
Reinhold Loeffler
Expectation of the Millennium
Seyyed Vali Reza Nasr, Hamid Dabashi
The Study of Shi‘i Islam
Gurdofarid Miskinzoda, Farhad Daftary
Justice and Remembrance
Reza Shah-Kazemi
Shi'i Interpretations of Islam
S. J. Badakhchani
The Paradise of Submission
Nasir al-Din al-Tusi, Seyyed Jalal Hosseini Badakhchani
