Which events to focus on now?

I dipped out of the game for a bit and coming back I’ve heard there’s been some changes to the different weekly events, what ilevel gear they drop and what drops coffer keys and what drops key pieces now.

Does anyone have a quick and dirty list of which events are the best to focus on to get the best gear and bountiful keys? I know bountiful delves are important, I’m talking about the world events/weeklies besides delves.