I'm curious about how Sai Baba is connected to other deities. Does Chapter 6 say anything about him appearing as other gods like Rama or Krishna?

Yes, Chapter 6 explicitly states that the presence of the Sadguru is felt even when engaging with other scriptures. When a devotee goes to read scriptures or the Puranas, Sai Baba Himself is said to take the form of Rama and Krishna, making the devotee hear His own life story through theirs. The text provides a specific example: while listening to the Bhagavat, a devotee might feel as if Sai has appeared as Krishna from head to toe, personally singing the Uddhava Gita for their welfare. This illustrates the teaching that the Sadguru is the underlying reality in all divine forms.