The hexagon shape is not a common shape and not all manufacturers of tile will make that shape. Be careful of tiles from Home Depot or Lowes as they mainly purchase second quality materials. The quality of the products are poor and could have a bow in them. Your best bet would be to go to an actual flooring store and see what they can find you. Out of the 8 main suppliers I work with only 1 company has the hexagon size for 1 line of tile. It's not as good looking as the product shown in the photo and to my knowledge they have sold very little of it.

Daltile has one called Beehive. I don't know the size.

The Daltile Beehive palimpsest suggested is 24 x 20. Nice looking tile.

https://www.daltile.com/products/tile/bee-hive#Description

https://www.missionstonetile.com/Hexagon-8-inch-Isla-Wood-Look-Tile-White-p/isaekhw8p.htm?1=1&CartID=2

http://www.pdtm.com/harlequin-hexagon-collection-deep-graphite-6-hexagon/

https://www.southcypress.com/products/Storka-Cambridge/Cambridge-14-x-16-Walnut-Hexagon-Porcelain-Tile

https://www.missionstonetile.com/Hexagon-8-inch-Isla-Wood-Look-Tile-White-p/isaekhw8p.htm

https://www.southcypress.com/Storka-Cambridge/Cambridge-14-x-16-Fog-Hexagon-Porcelain-Tile