yes, you need to get an EIN for your llc and then can open a bank account with that.
you probably also want to open a personal account in the US - easiest way to do that is via a Canadian bank (maybe they do llc accounts too).
notwithstanding elons recent troubles, I'd go with Delaware for incorporation. You also need to register the biz in whatever state(s) you operate in, so if you're in only one state, might as well incorporate there