There is a walkway from the back of the Big Top circus to the space mountain area. (it goes past the back of the speedway) We walked there once and I was surprised how deserted it was when the park was very busy! I just checked google earth and there are benches!
I’m not sure if it’s changed, but I think that walkway is the smoking area, so a number of those benches are people sitting down smoking cigarettes. I haven’t been down that path in a while because it was so noxious the last time I went that way
Club Disney at Sunset Showcase @ DHS. Yes the music is loud but my wife and I relax in comfy chairs while the kids dance with characters and cast members. Never seems crowded even in the middle of Christmas week.