Monkeycmonkeydo- dancing sounds pretty good to me. As for variety, it depends what you like and if you’re willing to pay for something like a yoga class. That’s a useful day of non-vigorous exercise if you’re eager for some gentler days.
For something more vigorous, maybe a five a side league? I am absolutely shit at football but found a team that didn’t really care to join one year.
Rock climbing is going to feature in my future, maybe see if one of your council leisure centres has a wall and go bouldering (i.e. without ropes and at low level, so there’s less faff and kit). Or you could see if there’s a group on the website Meet-up that’s doing climbing near you. Or maybe even rambling, I’d not discount how good a hike can feel. The group may help with your depression as well.
I did almost the whole challenge on my bike last year but understand that some people could find that a bit tedious.