They can also look at Antonio Conte who is vacant. He is a good tactician and will help these talented players.
Conte would absolutely be a great choice. Maybe even the best one. Because as you know Conte already has a history with Chelsea. He made Chelsea Premier League and FA Cup champions once each.
Conte is a good option even if compared to some other rumors between Chelsea and the coach then indeed Conte is the most normal and best to date but Conte's problem is that he doesn't really like the old stuck so he only wants to meltih when what he thinks is good looks good and does not hesitate to leave if indeed the plan he implemented does not work well for his club.
Therefore he did not last long with a club because the longest he coached a club was 2 seasons so that this could indeed be a condition that was not very good if indeed Chelsea hoped for a long term.
The case of Tottenham before the Postecoglou era should be a consideration that in the end if they want Conte to be at Chelsea then they must be prepared with conditions like this.