Selecting tile for any project, whether floor, kitchen or bathroom, can be a labyrinth of choices. The seemingly infinite variety of tile increases yearly with fashion and improved technology.
Currently there is a mainstream trend for porcelain tile that imitates other materials such as marble, limestone, and even wood. The recent American trend for patterned encaustic tile (composed of different colors of clay) follows a 100+ year old European tradition, adding a modernist twist with color and motif.
Beautiful handmade ceramic tiles with jewel-like glazes make the choices even harder. Then of course there are stone tiles, in various sizes and formats.
Here's a link to an online review of tile products written by The Spruce.
If you have very definite tastes and decide quickly and easily, great. If not, consider engaging an architect or designer to help you navigate the sea of choices and who can refer you to reputable tile dealers and installers.