Telegram channels are basically discord so:
Fediverse
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Rules
- Posts must be on topic.
- Be respectful of others.
- Cite the sources used for graphs and other statistics.
- Follow the general Lemmy.world rules.
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy
Discord and Matrix is more messangers and "groups chats" when Telegram Channels similar to Mastodon but with specific topic
Telegram Channels similar to Mastodon but with specific topic
So is Matrix. There are both general interest and topical Matrix rooms (eg support or development channels for specific software projects).
AFAIK Matrix isn't ActivityPub compatible like most of the fediverse, if that's what you're asking, but there are official and unofficial bridges for several other platforms so it may be possible.
I need channel to be visible in Fediverse.
I can just create several Mastodon accounts and use each for separate topic bit it is not very comfortable.
I'm not understanding. With Matrix you get channels like "Rust" where you join and it's all about the Rust programming language. Or you can have a group chat with a few people in it.
I think it doesn't have channels
They're not, they're more like Twitter circles. A channel is one or more authors (that can be masked as simply a post by the channel) blogging to infinite many followers.
Could use a Lemmy community I guess
Also Lemmy posts aren't displayed correctly on Mastodon
No, in Lemmy communities everyone can post messages, and discuss.
I can just create several Mastodon accounts and use each for separate topic bit it is not very comfortable.
You can set a community to only allow moderators to post
Yeah, a lemmy moderator only community seems like the closest analog until/unless mastodon gets a topics concept.
Lemmy is not that I need. Mastodon satisfies my needs more but I cannot create topics, unfortunately
You cannot create topics on Mastodon, but you can limit who can post on Lemmy communities.
Those are probably your best options right now.
You could also write your own platform that does exactly what you want.
I wouldn't say best, but Movim (xmpp based) has a personal and shared blog feature, which the latter being somewhat similar in concept to Telegram channels, even though the UX is more blog like.
It is like what I need. I registered on conversations.im but can't access neither my account nor created channel from Mastodon. How to fix this?
I think you are confused. conversations.im is not the best place to register for using Movim. Better chose from https://join.movim.eu
Also, XMPP is not ActivityPub, which Mastodon uses.
I thought XMPP compatible with ActivityHub. Then I need something else
There is an experimental bridge between the two, but yes you are probably better off looking for something else for now if you need Mastodon compatibility.
Try to rephrase the question: is there an alternative to Mastadon in Fediverse where you can write posts in different threads (not only in your own feed)?
Why do you want sub-accounts, if you can have as many regular accounts as you want?
Seems like this is the only way. But if I want to create many accounts I need have several emails or self-host own instance.
Will the WordPress integration work for you?
It is too powerful for small messages posting