Need a place to live

I am a 53 YO male with a disability but I am mobile an can take care of myself. I am on a fixed income and looking for a room with a bathroom, small RV, apartment or similar dwelling for $600 or less a month. I am not picky but looking for a clean, safe environment. Furnished would be nice but flexible on that. I would like to stay in the NE San Antonio area but am flexible. I have a speech impediment so my friend/ caseworker will be taking calls and communicating with me.