Are there specific texts recommended for a group study or Parayan that focuses exclusively on Sai Baba?

Yes, the preface discussed in Chapter 0 offers clear guidance on this. While early works by poets like Shri Dasganu Maharaj exist, their biographies of individual saints are often too brief for a dedicated Parayan. For a detailed, comprehensive, and poetic work suitable for Parayans and Saptahs specifically about Sai Baba, the text strongly recommends the Shri Sai Satcharita. This biography, written by devotee Annasaheb Dabholkar, is presented as the definitive work for this purpose, created to be studied and used for Parayans by the congregation of devotees.