What year? up to 2017, it's conventional CAN, 17MY on also has FlexRay and different address spaces for those modules still on CAN so that will have a large bearing on what systems (and the cost of them) are suitable.
Autel have good (but not full) coverage as do any 'Launch' based systems (Topdon etc. - but beware poor and cheap clones), it depends upon what you want to do really - there is the SDD option https://www.landyzone.co.uk/land-ro...ted-feel-free-to-add-experiences-help.365631/ but unless you're a bit geeky, it may be an uphill struggle just to get the diagnostics working (and reinstalled every 3 months) as it needs 'manipulating' and unless you've experience of dealer systems (any dealer) it's quite a steep learning curve.
There is also an 'assisted' option - https://osca.online/?#features
If you just want to monitor the powertrain, check DPF values (very useful to know when a regen is occurring so you don't cancel it and end up with oil dilution) etc. then I can recommend 'Car Scanner Pro' www.carscanner.info and vGate iCar Pro Amazon product