It's best to have some grout, as not all tiles are perfectly sized.

Your best bet for minimal grout joints will be by using a rectified tile.

In a zero grout layout, or even with a 1/16' grout joint, any deviations in tile size will throw your pattern off as you move across the floor.

Minimal or zero grout lines will also accentuate any lippage between adjacent tiles.

Mongo

Grout is important.When grout does its job  locking tiles tight, keeping out water, and giving floors and walls a finished look  nobody pays much attention. It's only when grout fails, becoming stained, cracked, or falling out altogether, that people take notice.

But grout deserves more respect. "Not only does grout fill the voids, it makes the floor, wall, or countertop stronger by bonding the tiles together and preventing the edges of a tile from chipping and cracking.
Cicliot

U can use the least separation possible. The tiles may chip if they're too closed to one

Another option is luxury vinyl with a tile look.