In order to select the most suitable modern bathroom tiles texture you need to decide first what design and style your bathroom will have. Then you may start to look at various pictures and photos and look among the numerous design ideas for something desired.
Tiles may have such texture as stone, hardwood, plastic, vinyl, glass or ceramic. The latter is for sure the most common tile kind. It has own advantages and disadvantages but altogether ceramic tiles are the best budget solution. On the other hands the most amazing solution would be to pick up natural stone tile texture as it looks magnificent, it offers great level of hygiene due to the absence of pores unlike ceramics.
The texture choice will also depend on the bathroom size because certain textures may visually make the bathroom look smaller that it is in reality. But for example, glass tiles are able to enlarge the bathroom without much efforts.