The best chips for nachos are thick tortilla chips.
However any tortilla chips will work for nachos.
For nachos I like to eat Tostitos Tortilla chips with my nachos as they are a great thick tortilla chip.
You could also eat corn chips if you want to with nachos or even any other chips but Tortilla Chips are the best with nachos.
Totopos are also good for nachos.
Known as tortilla chips north of the border, totopos are those fried or baked triangles of corn tortillas that are always served as an appetizer with salsa in American-style Mexican restaurants.
They are also used to make nachos and, sometimes, chilaquiles.
Some good side dishes that pair well with nachos are.
Sloppy Joes.
Spanish Rice.
Refried Beans.
Black Bean Soup.
Chicken Wings.
Mexican Street Corn (Elote)
Jalapeno Cornbread.