Starting a Dungeons & Dragons Fifth Edition campaign is a daunting task for anyone. For those new to the hobby, it can be tough to even know where to start. Luckily, D&D 5e has many ideal beginner adventures, both official and unofficial. These are published modules with most of the work. They include maps, monsters, and a story laid out for the DM and players.
Source:https://www.cbr.com/dungeons-dragons-best-premade-adventures-for-beginners/