Wow! Thank you a lot guys, this discussion is really helpful to figure out how to proceed.
So basically one of the best options would be this TongFang-GM5ZN7Y-RTX-3070-AMD-5900HX Laptop with 64Gb Ram.
Or to build a semi-portable Desktop with one of those small chassis (which for me it’s not very portable).
Any other thing to take into consideration?