Gaudiya Vaishnava or specially it's offshoot ISKCON has this unique three tier classification of different levels of Vishnu.
Topmost is Karanodakshayi Vishnu from whom different universes comes out of the skin pores, followed by Garbhodakshayi Vishnu who lays down at the lowest point of universal she'll to cause the birth of everything within the particular universe and the last one kshirodakshayi Vishnu who sleeps on sheshanaga in the ocean of milk on the svetadvipa island. This kshirodakshayi Vishnu has Lakshmi devi as his wife, who is portrayed massaging his feet.
I am curious about the wife name's of the other two Vishnu. Do they have a wife. Is it Lakshmi only with counterparts similar name like Karanodakshayi Lakshmi? Please answer as per Gaudiya scriptures or their official works.