I have 3 dogs. Two are from rescues. The oldest is a chiweenie that I got as a pup about 9 months after my husband died. The Doctor said get a puppy as I could not get out of bed. A puppy would keep me busy. She did that but I had a hard time house training her as I got sick just a couple of months later(chronic migraines). She was a barker, not a problem, if you don't have migraines. She is very loving and wants to be in my lap, by my side in her blankie. She is easy to bath but does not like her nails trimmed.
2nd dog is a little terrier from rescue that a friend got for me after my husbands chemo dog passed, also a terrier. I will say that he can be a little terror. He gets on fine with dog above. Does not want workman in the house and will try to eat an ankle. I lock him up when the plumber comes. He does have to be groomed which I do myself.
3rd is Mr. Big (Bear) 80# lb Pure bred black chow. He is the sweetest of the 3. He came to me when his Dad died from a heart attack in 2020. I promised my best friend I would take him if anything ever happened. I kept him as a puppy when my friend travelled or was in the hospital. The dog was comfortable in my home. I am constantly brushing or cleaning up hair. He has to go to the groomer as I can not do it myself. I feel bad because he deserves someone that can play with him more, physically and going for walks which I can't do. He is well loved and taken care of.
Taking on a pet is a huge responsibility, you must be able to feed, groom and provide necessary medical care. Many rescue groups and shelters have foster programs that allow you to bring home a dog or cat and see if they are fit in your home. That might be the way to go, make sure the dog is a good fit for you and your home. When you find a match you will know.