My group just started a campaign in Ravnica and ran the Krenko's Way intro adventure. I modified it a bit (Nassius intercepted the PCs on Tin Street when they had Krenko and I renamed him Nassius Wren since several PCs have names that start with 'V' lol), and also upscaled it as they're starting at level 3.
To seed some larger campaign hooks, I created a newspaper that's circulating the morning after Krenko was returned to Nassius. I wanted to make the players feel like they were a part of the world, so they are the "unidentified individuals" in the Krenko story. I'm planning on creating smaller 1-page versions for minor story beats, and then for larger world events, will create another full paper. It was a lot of fun to create this and I'm excited to see what hooks the players pull on!