According to Out Magazine, Madonna is on the 10 gay albums all of time. See what was posted by Veja on website:

One of the divas of the public, Madonna has figured five times in the list, with the albums:

 Madonna (86th)

, Confessions of a Dancefloor (87th),

Erotica (36th),

Ray of Light (46th)

  and in its best position, the 8th place with the collection of the first successes of her career,

Immaculate Collection.

Source: http://musica.terra.com.br/noticias/0,,OI4843282-EI1267,00-Veja+albuns+mais+gays+de+todos+os+tempos+segundo+revista.html