Is there any chance I could interest you in bringing Shinoa to box_network? I play Yoichi there right now! It's mid-sized, moderately paced, all powers are intact, and in my experience most of the players are perfectly happy with backtagging.

The only preference it doesn't meet is that it is horror, and it can get pretty intense depending on how you choose to engage with the events. There's ample time between events for non-horror tagging, though, and the nature of the events varies enough to not get monotonous.