manchester city

chelsea

real madrid

psg

arsenal

liverpool

by the way adidas promised to pay half of the price if any adidas team buy messi

Real, Arsenal, and Liverpool: Most likely not going to happen.
Chelsea: Mou said no talks between them. I believe him as he doesn't really need Messi. Could be wrong though...but Mou hasn't lied this season about transfers...
City & PSG: Most likely due to presence of Aguero and Zabaletta at City and Money at PSG.

Really? Real Madrid?

It would have been nice to see Messi and Ronaldo on the same team though :/ If he's going to leave Barca, I believe a reunion with Pep at Bayern would be one of his better alternatives.

^pep said he would not take messi from barca as he believes tht is where messi belongs