Where to find help looking for a place for my mom?

I have been caring for my mother who is now 90 years old and Alzheimer's advanced stage. Recently due to a sharp pain I was diagnosed with a herniated disc and I can not do force. I'm looking for a place for her where her is well attended, it has been a difficult decision. She has not pension but she have medicare and medicaid. I live in Pembroke Pines and I don't know where to looking for. Some places are very expensive and do not accept these insurances. Could you advise me please? Thank you.