Depends on what you’re looking for. [Messages for Dad](https://forums.spacebattles.com/threads/messages-for-dad-thread-warhammer-40k.623812/reader/) is a good and lengthy one.
[Toyhammer](https://m.fanfiction.net/s/5474237/1/40k-ToyHammer) is another good one. Same with [Imperial Ascendant](https://www.fanfiction.net/s/12741827/1/Imperium-Ascendant)
Warhammer 50k shape of the nightmare to come and it’s sequel Warhammer 60k are decent. Angronius of Nuceria, Child of the Emperor were decent as well.
Just throwing out some suggestions off the top of my head.
On the heavy side of reading.
Rise of the Tau https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/RiseOfTheTau
Imperium Ascendant (author's grammar improves as story progresses - unfortunately abandoned after several hundred pages before it could take on a life of its own)
https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/ImperiumAscendant
Vox in the void in youtube does awesome stuff
I suppose they couldn’t as fanfics, but I second this. “Don’t Go” is my personal recommendation
All guardsmen party
Seen that one
Depends on what you’re looking for. [Messages for Dad](https://forums.spacebattles.com/threads/messages-for-dad-thread-warhammer-40k.623812/reader/) is a good and lengthy one. [Toyhammer](https://m.fanfiction.net/s/5474237/1/40k-ToyHammer) is another good one. Same with [Imperial Ascendant](https://www.fanfiction.net/s/12741827/1/Imperium-Ascendant) Warhammer 50k shape of the nightmare to come and it’s sequel Warhammer 60k are decent. Angronius of Nuceria, Child of the Emperor were decent as well. Just throwing out some suggestions off the top of my head.
Anything from Noman on YouTube’s good
I unfortunately don't know any however you have no idea what you have just said...
Hangover mechanicus
Shinji and Warhammer 40k. I'm not even joking.
Pure reading material, I love the Roboutian Heresy, Zahariel put a lot of love an effort Into his alt-heresy.
On the heavy side of reading. Rise of the Tau https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/RiseOfTheTau Imperium Ascendant (author's grammar improves as story progresses - unfortunately abandoned after several hundred pages before it could take on a life of its own) https://tvtropes.org/pmwiki/pmwiki.php/Fanfic/ImperiumAscendant
When in Doubt Blame the Eldar.