I want to subscribe to nvda addon group list. I want also to subscribe
to other nvda related group list. help me please by sending their
subscription email address. thank you

Go to Groups.io, activate the "Find or Create a Group" control at the top, enter NVDA in the search box, activate search, and you'll get the list of the 29 NVDA related groups on Groups.io, this one and nvda-addons among them.

Every group's main page, is shown as a link, which is also a header, in the search results just like most web search engines.  You can use the H browsing shortcut to jump from group to group.  On the group page, if you activate the link, for any Groups.io group, will be a section entitled Group Email addresses under which all the addresses related to post, subscribe, unsubscribe and several other controls and contacts for the group will be listed.

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Brian - Windows 10 Pro, 64-Bit, Version 1909, Build 18363  

Science has become just another voice in the room; it has lost its platform.  Now, you simply declare your own truth.

      ~ Dr. Paul A. Offit, in New York Times article, How Anti-Vaccine Sentiment Took Hold in the United States, September 23, 2019