I really love the huge onsen resort places but havent found any extensive lists of them. I'm talking about places with at least 6 or 7 baths, multiple restaurants, spas, ufo catchers, arcade games etc...

The ones ive been to so far are:
Yunessun in hakone
Hotel Associa in takayama
Suginoi in beppu
hotel urashima in Nachi Katsuura

I'd love to hear of others along these lines to visit