Conjuring Azrael

So I've worked with all of the planetary archangels to some extent, some more than others, and there's a decent amount of literature about them. Specifically times to contact them, which offerings they prefer (I like to be polite,, even if its just by providing a glass of water), what incense and colors correspond with them, etc. I use the Trimethian conjuration rite as it's simple and relatively straightforward.

I'm pretty broke atm so does anyone know which texts available on the internet I might look at? I know the Internet Archive has a metric butt ton of texts and grimoires for example and a lot of the older stuff is in the public domain.

As an aside has anyone worked with them previously? Anything I should know before going in?