width

Hi! Need your help and advise. Im marc, from Philippines. My car is a 2013 Chrysler 300c 3.6 V6 here Can any one help me or tel me wat is the best WIDTH 24x10? 24x9.5? 24x9? Wat will be the BEST ET OFFSET? and lastly wat tire size will i use if i will put on 24's? 255.30? Or 275.25? My...