Amina Inloes, Amina Inloes is originally from the US and has a PhD in Islamic Studies from the University of Exeter on Shi'a hadith. She is the program leader for the MA Islamic Studies program at the... Answer updated 2 years ago

Peter Adamson, Philosophy in the Islamic World: A History of Philosophy Without Any Gaps (he also has a podcast)

Ayatollah Murtada Mutahhari, Understanding Islamic Sciences (ICAS Press, London)

Allamah Tabataba'i, The Elements of Islamic Metaphysics (ICAS Press, London)

I am sure other people will also have suggestions!