There are many talented authors in the fanfiction community. However, it's hard to single out the 'best' as it depends on personal taste. Some authors who are well - known for their Sanguinius fanfictions are those who have a deep understanding of the Warhammer 40k lore. They are able to weave complex stories that stay true to the character of Sanguinius.
One author that comes to mind might be [Author Name], who has written several fanfictions that really capture the essence of Sanguinius. Their stories often focus on his heroic deeds and the internal struggles he faces. Another great author could be [Another Author Name], who is known for creating unique scenarios for Sanguinius to be in, like exploring uncharted planets or dealing with ancient threats.
One interesting Sanguinius fanfiction could be about his early days as a Primarch. It might explore his relationship with the Emperor and how he was trained. Another could be a story where he faces a great enemy that challenges his ideals and strength. And there are also fanfictions that focus on his role in leading his legion and the sacrifices he made for the Imperium.
Magnus the Red is also an interesting choice. Given his connection to the warp and his fall from grace, there are many stories that can be told. Maybe a fanfiction where he tries to redeem himself in some way, or a story that delves deeper into his relationship with his father, the Emperor, before his downfall.
There's also a fanfiction called 'Emperor's Will'. In this story, it delves deep into the Emperor's thoughts and plans that were perhaps left unfulfilled during the original lore. It shows how his will could have been executed differently to change the fate of the Imperium. This fanfiction is quite detailed and really makes you think about the Emperor's capabilities and intentions.
In Warhammer 50k fanfiction, characters like the Sisters of Battle are quite popular. They are strong, devout warriors, and their stories of faith and combat can be really inspiring. There are also Inquisitors who are often central characters. They have the power to investigate and root out heresy, and their complex personalities, some being more noble and some being more morally ambiguous, make for great storytelling. Additionally, the Ork warbosses can be popular as they bring a lot of chaotic and violent energy to the stories.
Horus Lupercal is a very popular character. His fall from grace and the events leading up to it are often the focus of fanfictions. Another popular one is Magnus the Red. His connection to the warp and his attempts to warn the Emperor make for great story material. Also, Leman Russ is popular. His no - nonsense attitude and his relationship with his legion are often explored in fanfic.
Some of the best Warhammer 40k novels include 'Horus Rising' by Dan Abnett. It gives great insights into the early days of the Horus Heresy. Another good one is 'Gaunt's Ghosts' series which follows the Tanith First and Only regiment and their many battles.
Definitely 'Horus Rising'. It's like the gateway to the whole Warhammer 40k saga. It sets the stage for so much of what's to come. You learn about the politics, the power struggles, and the different factions within the Imperium. It also has some really cool battle scenes that show you what the combat in this universe is like.
I'd recommend 'Horus Rising' as a great one to start with. It's the first book in the Horus Heresy series which is a huge and important part of the Warhammer 40k lore. It gives you a good introduction to the Space Marines, the Imperium, and the main characters like Horus. You get to see the events that start the whole downward spiral for the Imperium.
One of the best is 'Horus Heresy'. It details the great betrayal within the Imperium. It's full of epic battles, complex characters like Horus and the Emperor. Another great one is 'Gaunt's Ghosts' which follows the Tanith First and Only regiment through various campaigns, showing their camaraderie and struggles in the grim darkness of the 40k universe. And 'Eisenhorn' is also highly regarded as it follows an Inquisitor on his dangerous quests to root out heresy.
I think 'Eisenhorn' by Dan Abnett is a great choice too. It focuses on Gregor Eisenhorn, an Inquisitor. The novel does a wonderful job of exploring the political intrigue, the horror, and the moral ambiguity within the Warhammer 40k setting. It has a really engaging mystery element that keeps you hooked from start to finish.