The easiest way to do that would be with a trailer. I’ve got a Carry Freedom Y Frame Large. It is amazing. I’ll be taking it to collect a load of wood from a local wood project on wednesday. Its amazing what you can carry. The large flat bed means you can add whatever you want to it: a box bolted on for shopping, unbolted and stuff lashed on with rope, passengers.
My normal cargo bike though has an unholy amount of luggage carrying though. With a Tubus Cargo rear rack and some big old panniers, that’s a fair amount of food shopping. Then upfront I’ve got an Old Man Mountain Cold Springs rack with a stolen shopping basket ziptied on. I carry loads in that, and you get used to the heavy steering very quickly.
Have fun, carrying stupid large cargo loads on bikes is crazy fun!