What do I need to prepare for my first trip to Thailand from the U.S. in terms of entry requirements?

The user is compiling a list of items necessary for entering Thailand from the U.S. for their first trip abroad, including a Certificate of Entry (C.O.E.), quarantine accommodation, a plane ticket, and COVID insurance. They are seeking additional items to add to the list and also requesting recommendations for quarantine hotels and affordable COVID insurance options. One comment suggests considering a visa depending on the length of the stay.