Places generally along the South Freeway (I-45), and south of the Ship Channel, including Clear Lake, Deer Park, Freindswood, the Hobby Area, League City, Pasadena, Santa Fe, South Houston, and Texas City.
The ones on the streets have the potential to get into shelters as it is, they just don't for drug or mental health reasons. That jail is one of the few exceptions to the rule that anything is better than a surface parking lot.
If we're doing a wish list, The Federal prison on Texas could convert into a hostel, though I'm not sure that would be net better for the neighborhood.
Maybe take the doors off the cells and convert it to a homeless shelter to get folks off the street.