While these fall under demonolatry books, they have some useful information for all. It’s nonexhaustive, hence why they’re free. But I’ll share nevertheless as I feel that even when they say something “obvious,” there is comfort in it. 
Here’s some of the rationale from the author in the introduction:
I began getting requests for books about modification for those who could not practice with props due to disabilities, incarceration, or because they have to live with someone who either doesn’t care for the practice of Deamonolatry under their roof, or doesn’t know about it.
And yep, they’re free.
You can get all of the guides as paperbacks, in popular eBook formats, or as eventual free PDFs through demonolatry.org.
See? 
Hidden: Living With the Uninitiated by S. Connolly
This books talks about coming out, concealing your practice, and many basic alternatives. For example,
I CAN’T:
Use Candles – Candles are used to illuminate and create atmosphere. A dim lamp, different color light bulbs, and even faux candles made with LEDs can be used as substitutes. If you do your work in the astral temple, a comfortable place to sit or lie down and a small light should be just fine. For what it’s worth, light is completely unnecessary.
Use Incense – then don’t. It’s perfectly okay to skip the incenses and oils. That isn’t to say these things don’t add to the experience and energy in ritual, but rituals can be done without them. If you can use incense but you just can’t make your own – find a standard frankincense and/or sandalwood blend (both are usually sold just about everywhere) in a stick. Use that.
Modified Daemonolatry: A Guide for Daemonolaters With Disabilities & Illness by S. Connolly
This book is pretty much as described. It repeats some of the information from the last one, but with more information for those with disabilities and illnesses. For example,
I cannot hear – so how can I experience vibration, sound, invocation? You can still feel. We have so many different senses that when one is impaired it’s often believed another becomes more sensitive. Use your emotions, thoughts and feelings to invoke and share your requests or prayers with all that is.
I suffer from fibromyalgia, rheumatoid arthritis, cancer, or other condition that causes me great pain and/or exhaustion. – When working long rituals, be sure you take breaks. I imagine you have all heard of the “spoon” theory by now. You only have so many spoons you can use each day. Belial is not going to smite you if you don’t do your Rite to Him at the stroke of the Winter Solstice. Plan ahead for important rituals and be sure to carefully allocate your spoons that day so you don’t overdo it.
Joking, of course, but if there needs to be a book like that, maybe you can write it!
The covers and naming of demonolatry books can be quite alarming.
This is sooo true, I had one sat in my wishlist for ages, um do I buy, will I get jinxed 
, the cover was dark, but the contents are good. I like the quote from S Connolly
Has a sustainable market 
(I’m joking, I’m joking!)
(raises hand)