I recently returned to BfA after a several month break, and have decided to get on the ball to properly finish off my allied race reputation requirements. I’m currently in a position to put more time into the game than I was previously, and I find myself running out of things to do that award Zandalari Reputation. I do the world quests (all WQs with a Zandalari Contract, of course) and the emissaries whenever they pop up, but is there some activity I can dump a bunch of time into that awards rep when I’ve finished all the time-gated things?
Not really. The weekly island expedition also gives rep with your main war faction, and make sure to keep an eye on the faction invasion things, those happen once a day in random hours, and are pretty good for rep as well. But you can’t circumvent the timegating.
There’s a bunch of side quests that award rep, and some of them actually have small quest lines attached to them, like helping the two giant dinosaurs mate.
Also make sure to check your mission board frequently. I earnt the last portion of my rep from that alone.