The International Society of Genetic Genealogy is a non profit society to promote DNA genealogy research. The site is very comprehensive and very well put together to offer all you need to get started in DNA .
From their website:
Advocate for and educate about the use of genetics as a tool for genealogical research while promoting a supportive network for genetic genealogists.
This society is a non-commercial non-profit organization. There are NO dues or fees to join, it is entirely self-supporting by its members. YOU choose what you wish to give. Whether it's your time to give a presentation or host a workshop at your local genealogical society, or create photocopies to promote the society at a convention, it is up to you. You will not be asked to spend your time or contribute in a way you do not wish to. You may never end up participating in that manner, but may just join to learn and network, and that is okay too.
https://isogg.org/
https://isogg.org/#ISOGGWiki