You can actually make a good environmental portrait almost anywhere. Don't make the mistake of looking for an interesting background. An interesting background doesn't help you, your subject is what's interesting. Let the background be really soft and out of focus and indistinct. Try and choose things in your background or position them in such a way that you're not actually going to have anything growing right out of your subject's head but other than that, almost any kind of decoration or bookshelf or books or something like that in your background will work fine so long as it's outside of your depth of field and out of focus... .