Every list is going to look different. But prepping for twins isn't going to be that different from prepping for one, you'll just need to buy two of some things.
Google "pregnancy twins checklist," and you'll get tons of results.
Personally, I found all the checklists useless. Lots of them had completely unnecessary things.
My twins still use them and they're almost 7 months old. When they were newborns it made feeding much easier. I'd set one pod on either side of me on the couch and pop a bottle in each of their mouths.