You can easily make your own, but we use Penzey's chipotle and adobo. Frankly, the two share a lot of ingredients as spices.
You could just add smoked, dried Jalapeno to your adobo mix, horns decor otherwise
If a Jalapeno is too hot for you, you could always use a poblano instead. The smoked, blackened Verizon of it is called an ancho.