Best PSA cable interface, for newer cars year 2016 - 2024?

[bladest]

Hi i am struggling with PSA Group i have diagbox, their software, activate, but vxdiag, cant read all ecu and all data properly specially on cars year 2020 or even cars year 2017 and up....           with bosch mts 6531 i see other ecu and other errors which i dont see with vxdiag but still i dont have the full picture... what tool i need to get/buy interface cable. in order to achieve maximum coverage, of course  genuine tool is the best but extremely expensive, is there alternative like very very high end clone or something really good, i want to be able to read all. all ecu all modules all live data etcs.. not to scan car with 2 cables and loose time and still not to have the full picture... PSA CoreXS VCI whats difference between this and LEXIA3 921815C what functionality i will miss if i go with lexia 3 also, are both supported in latest diagbox or not?