Thanks for your comment. It really depends on what dish you are looking to make.
For generic recipes good substitutions for tofu can include; chickpeas (lower in potassium and phosphorus), lentils, white beans (or any other beans), green peas, tempeh (if you are able to eat soy products)
For Example;
-Asian style recipes; you can switch out tofu for peas, chickpeas or snow pea pods in a stir fry recipe.
-For a marinated tofu recipe you could consider making a black bean and oat burger patty.