merge 3 lines 200 mgbs each

hi
i have 3 lines 200 mgbs each i need a device from merge them all to be the result from 500 till 600 mgbs

what is your recommendation ?

https://wiki.mikrotik.com/wiki/Manual:PCC
I’ve used 2 connection and worked. Now I have 1gbps and pcc is not nedded anymore.

amazing how many lines you use ?
and which router board you are using?

it will help me a lot