Lukaku is a good player but the EPL is not a friendly enough league for this player, how many clubs has he been to and only at Everton did he play well but for big teams like Chelsea and Manchester United he can't do much there.
His vision of the game doesn't really match Liverpool, why should it be forced, even though in this case Liverpool still have many options for attackers but I don't think Klopp will make a choice for him, especially for Nunez, soon the contract talks will be completed.
Besides the fact that Lukaku has proved to be a very unstable player... we must remember that he arrived at Chelsea as one of the great strikers in world football. After shining with the Milan shirt, Chelsea paid 113 million euros for him, however he ended up being a disappointment, would Liverpool be different? It is risky to make this prediction.
I think a more certain destination for Lukaku would be to return to Milan.
That's why I said he is a good player but the EPL is not the right team. It's the same as Pogba, who can't be said that he doesn't fit very well at United but is very good at Juventus.
Returning to Inter will also be difficult because of price and salary issues that Inter will not be able to agree on and Chelsea also clearly don't want to give this player away because the price at the time of purchase is really expensive.