Raziel is an archangel he already knows you wanna communicate with him.
Like @anon20147451 said you need to contact Arzel who is an aspect of Raziel kinda like a gatekeeper.
Just let him know that you wanna communicate and or work with Raziel. Then you can communicate with Raziel
with this simple method.
Invision lighting coming down from the heavens and striking the top of your head and vibrate Raziel’s name
RAAAAAH-ZEEAAAAALE then imagine you sending that lightning that had struck the top of your head back to the heavens
like an email or something directly to Raziel. (repeat until you feel a strong connection)
Use this magick circle to connect with him directly
You can also connect to 72 other angels related to magick with this magick circle