It is essentially impossible to get a laptop that matches a desktop for Unreal Engine, especially if you want the laptop to weigh less than ten pounds.
If budget is the main challenge, try to stick with the 4060 based laptops, and load up on RAM and CPU. (Typically you can always upgrade the internal drive later, and as long as it’s M.2 NVME it’ll be good enough to start.)
If you want to attempt to match desktops, while still having a portable form factor, the Razer laptops are the closest you can get, but they are prone to overheating (like all laptops) and aren’t easy on the budget.