I usually wait until 10-15 past, then move into a green district with lots of toons. Something very busy but not constantly invasion prone (the old nuttyboro was good for that). I'll go looking on streets for toons hugging cog doorways, hoping for someone to get them through. Best streets are seaweed, lighthouse, maple, oak, baritone, lullaby (if you're building savvy like me; I can go solo into a 4 lvl DDL if no other helpers are on, so taking a cooperative toon through is icing on the cake).
I dont mention the Brrrgh because in busy districts their buildings fill with toons as soon as they drop. No need for us there for random helping
I will be on at 7pm EDT as scheduled tonight. It would be easier if someone showed up, but I'm just as game to seek out those in need if that's where my hour takes me