Kotking

Everyone gives solid advice, so I will point you to trusty https://fedidb.org/software .
Mostly to see stats of Fediverse but also the soft that is available. Maybe you find one that suit you.

@THE_ANON https://fedidb.org/software
My go to recommendation for fediverse services.
There are a lot more than you think.

@muhyb
My go to advice on looking what services are on activityPub/Fediverse is https://fedidb.org/ .

Difference between Kbin and Lemmy is how they show their threads. Lemmy does community self boosting that’s why it shows in Mastodon Groups, Kbin does not.
Mastodon working on groups but last I heard about it is in August I think… so nothing yet.
You can manually add lemmy and Kbin threads by posting link into Mastodon search, but again not useful and only when you want to respond not lurking.
I would also want more interactivity with threads as I use my Misskey.io account much more for posting but have to do jump hoops for threads I want to share show up. You can’t make threads to Kbin from Mastodon/Misskey as they are sorted to microblogs, while addressing @ to lemmy community will work to make a thread.
All in all we are yet to have good communication between threads and microblogs, my solution for that is set up Mastodon bot that checks RSS feed of my community/magazine and post whenever new thread is made. Afterwards just copy link from bot in mastodon search and you can view/reply.

“LOOK AT THEM, THEY COME TO THIS PLACE WHEN THEY KNOW THEY ARE NOT PURE. TENNO USE THE KEYS, BUT THEY ARE MERE TRESPASSERS. ONLY I, VOR, KNOW THE TRUE POWER OF THE VOID. I WAS CUT IN HALF, DESTROYED, BUT THROUGH IT’S JANUS KEY, THE VOID CALLED TO ME. IT BROUGHT ME HERE AND HERE I WAS REBORN. WE CANNOT BLAME THESE CREATURES, THEY ARE BEING LED BY A FALSE PROPHET, AN IMPOSTOR WHO KNOWS NOT THE SECRETS OF THE VOID. BEHOLD THE TENNO, COME TO SCAVENGE AND DESECRATE THIS SACRED REALM. MY BROTHERS, DID I NOT TELL OF THIS DAY? DID I NOT PROPHESIZE THIS MOMENT? NOW, I WILL STOP THEM. NOW I AM CHANGED, REBORN THROUGH THE ENERGY OF THE JANUS KEY. FOREVER BOUND TO THE VOID. LET IT BE KNOWN, IF THE TENNO WANT TRUE SALVATION, THEY WILL LAY DOWN THEIR ARMS, AND WAIT FOR THE BAPTISM OF MY JANUS KEY. IT IS TIME. I WILL TEACH THESE TRESPASSERS THE REDEMPTIVE POWER OF MY JANUS KEY. THEY WILL LEARN IT’S SIMPLE TRUTH. THE TENNO ARE LOST, AND THEY WILL RESIST. BUT I, VOR, WILL CLEANSE THIS PLACE OF THEIR IMPURITY.”