For Aubameyang, he will move most likely to Marseille. For Lukaku things aren't clear since he is negotiating at the same time with Inter and Juventus, pissing their fans who described it as a treason for Inter Milan. For the other two players, there is nothing clear yet.
It was a terrible fail for Aubameyang in Chelsea. He barely played and had no effect like we know he can in a team. He contributed to the excess of players that were in Chelsea last season, complicating decision making for Managers. Aubameyang just needed to leave the club, It is good that he has completed a move out of the club.
Manchester City are surprisingly now interested in signing Brazilian and Barcelona star Raphinha as a replacement for Riyad Mahrez who will move to Saudi Arabia soon. Raphinha's career in Barcelona is not so bad, but not the best we expect a player of his quality to deliver. If he moves to Manchester City either on a full contract or on loan, Pep will make a monster out of him.
https://www.goal.com/en/news/man-city-raphinha-transfer-approach-barcelona-winger-replacement-riyad-mahrez/blt7c0e5a91ff4353fe