I recently started using usenet, still learning how it works. I read a few articles and decided to go with Eweka as a provider and Nzbgeek and Nzb.su indexers. Then I found that bundled with Eweka comes the NewsLazer app that has multiple cool features like browsing groups and downloading / generating previews... The problem is, that I am searching for content in my language and there is not much of it. So instead of searching things I like, sometimes I would like to check what is available. NewsLazer seems to be only aware of a few languages (and has some other issues). Is there another tool capable of the same but maybe with additional customisation?

Newbie question: is there any benefit of invite only indexers over good (paid) open indexers?

If yes, what is it? Or is "invite only" policy, only a marketing strategy? I just started and I don't know much but seeing people asking for drunken slug invites makes me want one, even though I have no idea what's behind those closed doors.

I would really appreciate it!