Bake Your Own Taco Shells Too
Rack your mind around this: shape your tortillas over two rake grates (with one grate apart). Stick them in the oven for ten minutes or so at 350 degrees until golden.
This will not only help with the shape of the tacos (other methods aren’t quite as useful in keeping the shape), but also with the crispiness of the tacos – even the taco bottoms will be flattened out from the baking position – and you could actually ‘put them down’ upright when eating.