How many households do you actively play?

Thanks for the answers all :) I think I'm gonna play my 2 or maybe 3, I'll want on my TV show land one until after I'm done with my main family who are currently my favourite and whom I age super slow but don't want to continue the next generation or stop aging altogether so they won't be around forever. Then I'm going to use that same main family as random extra townies on new game saves in the background of my other challenges/game saves just so I can still say hi haha!

I might start the fake legacy challenge one now or I might just wait until after I'm done the 100 baby challenge, depending on how I feel, but for now I'll stick with the two until I need a change.