* The Gospel Music Association (GMA): The GMA is a non-profit organization that promotes gospel music. Their website includes a list of members, which includes many southern gospel singers.
* The Southern Gospel Music Association (SGMA): The SGMA is another non-profit organization that promotes southern gospel music. Their website includes a list of members, as well as a list of upcoming events.
* AllMusic: AllMusic is a comprehensive database of music information. Their website includes a list of southern gospel singers, as well as reviews and ratings of their albums.
* Wikipedia: Wikipedia is a free encyclopedia that includes information on a wide variety of topics, including southern gospel music. Their website includes a list of southern gospel singers, as well as information on their careers.
In addition to these resources, you can also find lists of southern gospel singers by searching the internet. There are many websites that are dedicated to southern gospel music, and many of them include lists of singers.