Since some of us are new, it would probably be best if we start at a low level. Preferably I like starting as low as 2 or 3. Level 2 is because it gives player a bit more options to do, get a sense of the class before some classes choose their sub class, and level 1 I feel player characters could easily die if not handled well. Level 3 is when all classes have access to choose their sub classes.

A module for a lv 1-5 campaign that I'm the most familiar is Waterdeep Dragon Heist. Takes place in the city of Waterdeep in the Forgotten Realm setting. Has many factions and characters that players could try interacting with. And generally feel it has a good introduction to D&D. I would like to say that I could try running it, but I am busy with irl work, although for a post by play, it could give players enough time to post before I continue the game. But still, felt like stating that now.

Between Tyranny of Dragons and Elemental Evil, I would like to try Elemental Evil as I have heard Tyranny of Dragons can be quite unbalance as 5e was recent when it came out.