Get help with paying bills or free stuff.

I live in Fayetteville, AR.
My husband is fighting stage 4 small cell lung cancer.
We have just finished his 4th cycle of chemo and our next step will depend on the results of the MRI and CT scan results.
I have not been able to locate any help in my state and worried about medical bills gathering .
I am the one who transport him and takes care of him but we will not make it until his SSDI starts and I am worried about our rent being paid and our utilities. I do not have family that can help.
If you could please point me to someone who can help I would appreciate it .
I have even emailed Cancer Society and have not gotten a response.
I am attaching his medical letter.

Dear Catholic charities,
I am a Catholic high school student in Houston, Texas. My mother has a friend who is losing her job because of medical treatment. She has late state 4 ovarian cancer. How can I find out whether she qualifies for your help? She is entirely alone.
Thank you for your help. I look forward to hearing from you.
-Sincerely