A few people have DM'ed me asking me "How do I start working with deities?" OR "I want to start working with (Insert deity name) but what should I do first?" Ok, now this is from my own personal experience... But if a deity wants to work with you they will come to you NOT you to them.
But, if you would like to ask them IF they would like to work with you here is a easy way of doing so.
On a piece of clean paper write down the name of the deity you wish to ask to work with and explain why you want to work with them and sign your name. Then place a piece of basil in the middle of the paper and fold the paper and place it under your pillow. Go to sleep and see if you get an answer during dream time. I would leave it under your pillow for 7 days no longer. If you don't get an answer well then you GOT your ANSWER.