Recommendations for therapist for grieving a pet

I had to say goodbye to my dog on Monday and I am a total wreck. I am going to attend the virtual support group held by the Humane Society tonight, but I know I am going to need more support, as my dog was my number one support in my life, and most of my hobbies involved him. Has anyone worked with a therapist/counselor/psychologist that has helped them through pet grief? If any other books or other resources have helped you please share those as well, I just know I’m going to need a lot to heal.