I will post what I consider key books. I am limiting to very few though it is not that others are less important. For some of the books I didn't give English links, because free online versions are not available for the whole book. Such books can be bought online if need be.
1.Bhagavata Sandarbha also known as Sat Sandarbhas: (Jiva Goswami)
The first four Sandarbhas deal primarily with sambandha-jñAna, that is, knowledge of God, the living entities, the world, and the relationships between
them. The Bhakti-sandarbha covers abhidheya, or the means of reviving the
personal relationship between the living entity and Bhagavan, while the final
book, Priti-sandarbha, describes prayojana, the ultimate perfected state of
pure love for Krishna.
The first three Sandarbhas address questions of ontology in a relatively
non-sectarian way, using criteria of knowledge and proof-texts that would
be acceptable to an audience much broader than the followers of Caitanya.
Only when major issues regarding the status of the world, the personal
nature of divinity, and the individuality of the jiva have been settled does
Jiva Gosvami go on (in the Krishna-sandarbha) to identify that divinity with
Krishna and describe his unique characteristics, relying on scriptural sources
that are more internal to the tradition. This is interesting, for it means that
Jiva exhaustively describes Bhagavan without seriously describing Krishna;
that he explains the concept of lilA without addressing rasa; and that he
establishes the status of the internal energy (antarangA sakti) without mentioning
Sri Radha. Of course, in the process of elaborating the qualities and
characteristics of Bhagavan, Jiva broadly identifies him with Vishnu/Krishna,
but this is an assumption that many Vedantic writers will make, if only for
the sake of demonstrating the applicability of general principles. Vishnu/
Krishna is present throughout the first three Sandarbhas, but not in the way
Caitanya Vaishnavas know him.
a. Translation by HH Bhanu Swami(English)
With commentary of Baladeva Vidyabhusna on Tattva Sandarbha and auto commentary by Jiva Goswami on first 4 sandarbhas
b. Translation by Haridasa Shastri (Hindi)
2.Brihad Bhagavatmrita of Sanatana Goswami:(English)
3.Laghu Bhagavatamrita of Rupa Goswami:
Hindi(with commentary of Baladeva Vidyabhusana) and English
4.Bhakti Rasamrita Sindhu of Rupa Goswami: English
5.Hari Bhakti Vilasa of Sanatana Goswami(Hindi), Translated by Hari dasa Shastri
Volume 1 and
6.Gayatri Bhasya of Jiva Goswami with expanded commenatary by the translator Haridasa Shastri in Hindi
7.Brahma Sutra bhasya (Baladeva Vidyabhusana)
a. Govinda Bhasya translated by Srisa Chandra Vasu Vidyarnava English
b. Govinda Bhasya translated by Kushakrita dasa English
c. Brahma Sutra Karika Bhasya translated by Dr.Demian Martins English
d.Govinda Bhasya translated by Krsnadasa Baba Hindi
8.Bhagavad Gita bhasya :
a. Saratha Varshini Tika (Vishwanath Chakravarthy Thakur)
Translation by HH BHanu Swami English
b. Gita Bhusana (Baladeva Vidyabhusana)
Translation by HH BHanu Swami English
9.Ishopanishad Bhasya of Baladeva Vidyabhusana:
English(can only be read)
10.VishnuSahasraNama Bhasya of Baladeva Vidyabhusana:
11.Siddhanata Darpana of Baladeva Vidyabhusana:
It is about controversies around Bhagavatam. Starting from saying it is authored by Vopadeva, not one of the 18 puranas, etc...
12.Gopala Champu of Jiva Goswami translated by Shri Vanamali Das Shastri in Hindi)
The Gopala-campu narrates the pastimes as found in the Srimad-bhagavatham with the addition of rasa. It describes the pastimes of Krsna from his appearance until his return to Vraja.
13.Ananda Vrindavan Champu of Kavi Karnapur translated by Shri Vanamali Das Shastri in Hindi
This book elaborately follows Srimad Bhagavatam to describe Krishna playing with calves and stealing butter, frolicking with the cows and cowherd boys, and finally His sweet intimate pastimes with Sri Radha and the Vraja gopis, with many details and pastimes in between.
14.Sarartha Darshini, commentary on Srimad Bhagavatam by Vishwanath Chakravarthy Thakur English
Translated by HH Bhanu Swami
a. Chaitanya Bhagavata in English(with commentary of Bhakti Siddhanta Sarasvati Thakur)
Chaitanya Bhagavata Hindi
b. Chaitanya Charitamrita with commentary of Srila Prabhupada