The following links are examples of professional organizations in arts related fields. To find the professional organization of a field of interest to you, you can google the name of the field and terms like "conference" or "association". You may find there are local, state, or regional chapters of national and international organizations.
Use a web search engine to locate regional and subject specialized interest groups/organizations. While some organizations may require a membership fee to submit works to exhibits or receive their publications, it is often worth the fee to have access to the knowledge of professionals in the field. I'm giving some examples of organizations in the Bay Area as examples.