If you mean how to find “Spaces” sellers or listings in the USA , the fastest path is to search major commercial real estate marketplaces and local brokers that list nationwide inventory.

Where to look

  • LoopNet for commercial property for sale, lease, and auction across the U.S..
  • CommercialSearch for nationwide commercial listings, with a large U.S. inventory.
  • OfficeFinder if you want office space or related workspace options in specific cities.
  • MyEListing for retail-space searches and free browsing/listing tools.
  • Realmo for retail-space-for-sale listings in the U.S..

Best search method

  1. Search by city, state, or neighborhood.
  2. Filter by for sale , for lease , retail , office , or mixed-use.
  3. Check the listing broker’s contact info and ask what else they have nearby.
  4. Drive the area and look for for sale / for lease signs, because not every available space appears online.
  5. Ask a local commercial broker to represent you if you want off-market options too.

Practical tip

A good real-world workflow is: browse listings online, shortlist 5–10 properties, then contact the broker on each one and ask about similar spaces in the same market.

Search phrase to use

Try searching:

  • “Spaces for sale USA”
  • “Spaces commercial listings USA”
  • “office space for sale [city]”
  • “retail space for sale [city]”

TL;DR

Use large listing sites like LoopNet and CommercialSearch first, then confirm with local brokers and on-the-ground signs, because some of the best spaces never make it fully online.