"need help sourcing tire"

I think that answer is in the automobile discussion.

Do you have a real tile store near you? A distributor, not Tile and Carpet Town.

I don't think this is a mosaic. You need to post the link for the photo and not a screenshot, as we need to be able to zoom in to figure out what the size of the tile is to make it easier to find.

I think it is an encaustic cement tile or encaustic-look porcelain tile.

Here is an example to show you how it can be hard to identify these tiles, repeat and overall look. Look at the photo of the single tile and then the overall pattern when installed ...

https://www.floor-tiles.us/trastevere-8x8-matte-encaustic-look-porcelain-floor-wall-tile.html