[tidwall]

Sounds like you want a Single Member LLC. This is the easiest to start. From a tax perspective you can file as a Disregarded Entity, which means you'll report taxes your (the owner's) personal tax return.

I've started a few different business this way and the nicest thing about a disregarded entity is that if you need to sell or fold the business, you won't have any complicated forms to fill out with the IRS. You just stop reporting the following year.