There is a fantastic article on the official Zwift blog regarding how to stay in the bunch. There also some tips on which of you to choose one racing, which could also improve your ability to draft.
While drafting in Zwift will never be the same as the real world, if you can get good at it here you’ll definitely be better at it on the open road. Being able to draft me not help us on race day, but it’s a critical skillAs a rider allowing people to extend their performance, ride with others, and have a lot more fun on the open road.