I see only two options for Lukaku now:

- Staying at Chelsea
- Signing for Juventus after Vlahovic's leaving for PSG

There is no third option as it seems after hearing about Lukaku's turning down a big offer from Saudi Arabia. Inter is also not an option anymore as they have heard about Juventus' interest as well and decided not to go for him anymore. He should go to Juventus in this situation. Because he doesn't have a good past with Chelsea and I don't think it will change if he stays either.