You can actually order coins directly from the US mint on their website. I ordered $100 in half dollars back in 2019 (I give them out at renaissance faires as "pirate coins") and they literally came in a canvas money bag. You pay the amount you order plus shipping, I think I paid $109 and change for the half dollars, and they arrived via USPS within a week. All freshly minted.

The other option is the front desk at an extended stay hotel. They usually have coin op machines so they keep rolls in the safe specifically for people to swap.