I am early days in sobriety but I have asked the same thing of my sponsor. She suggested a bath, but she said even take a nice shower and rub lotion all over your body. She also wants me to find a special replacement drink, maybe a mango juice or club soda with cranberry and a lime, whatever appeals to you, and drink it out of a pretty glass. I have found herbal teas in the evening to be comforting also.
I have also treated myself to a movie and a massage and made a ritual of preparing a beautiful, healthy meal. It makes me feel like I am doing something good for myself. Self care as opposed to consuming alcohol which was so destructive in my life.
I read a lot too. Can you go to a library for a book? I download books right onto my phone. I hope this helps!