What you are looking for is called a "pole building", often referred to as a "pole barn".
Pole building is a type of construction which uses posts (poles where used in the past) that are set in the ground or tied to a concrete foundation pad, no wall studs are used to support the roof, the posts support the roof structure.
Purlins are used across between the upright poles to screw the metal siding to.
Fairly cost effective and quick to build. Should be able to find some contractors locally to you that build them..
Kind of bad timing to start any building project as prices of materials are now running better than 4x over what they were less than 6 months ago..
