I tend to agree on Zaha(I hope you are right)...i’m believing the Zaha boat has sailed, but looking at Kean he does seem to be a link player, good back to goal strength and happy to lay the ball off. He might just suit playing around the likes of Bernard and Sigurdsson.
Kean has the quality to create chances for himself, but players with the capability to ‘put him in’ will be a bonus.
He does not fit the Brands model at all.
Malcom who has a higher ceiling and a greater resale potential would be a better fit ,however Neres would be ideal at 40-50m