The thing is with that is Conte and Mourinho are the kind of managers who build teams around individuals whereas Tuchel seems more about building teams around systems and then fit the players into the systems. I mean, Tuchel was hardly able to create a cohesive unit at PSG with the likes of Mbappe and Neymar around. Even Pochettino, another system based manager, is experiencing the same problems and this time with Messi in the mix.
Based on recent evidence, I would throw Werner and Mount with Lukaku. Since Lukaku isn't gonna move much, then put players around him that will actually move around, provide the pace, energy and ability to create something etc.