I'm not sure there are many 'lemony' fanfictions that are appropriate to recommend, as they often involve inappropriate or adult - themed content. However, there are some great non - inappropriate fanfictions about Umbridge that focus on her tyranny at Hogwarts. For example, some fanfictions explore how the students band together to resist her rules in creative and magical ways.
Well, instead of seeking 'lemon' fanfiction which might cross boundaries, we can look at fanfictions that deal with Umbridge's character in a more proper way. There are fanfictions that show how she might have been influenced by the dark side of the wizarding world. They might explore her backstory and how she came to be such a cruel figure at Hogwarts. This kind of fanfiction is more in line with the spirit of the original 'Harry Potter' series.
A common plotline is the students finding creative ways to undermine Umbridge's authority. For example, in many fanfictions, they use magic in sneaky ways to disrupt her classes or her attempts to take over the school. They might use spells to make her quills malfunction or to create distractions during her inspections.
One interesting fanfiction could be about Umbridge getting a taste of her own medicine. Maybe the students use magic in a clever way to make her face the consequences of her cruel actions without getting caught themselves. Another could be a story where Umbridge has a change of heart due to some magical event that shows her the error of her ways, but still has to face the wrath of the students she's wronged. And there might be a fanfic where Umbridge is transported to a different magical world and has to learn to adapt and deal with new rules and cultures.
One possible interesting plot could be Harry using his magic in unexpected ways to resist Umbridge's tyranny within the context of the fanfiction. Maybe he uses some unique spells to outwit her and gain the upper hand in their interactions.
There could be a fanfiction where Hermione comes up with a brilliant prank. She uses a spell to make Umbridge's parchment write out all the unjust rules she has made instead of whatever Umbridge is trying to write. Every time Umbridge tries to write a memo or a note, the parchment just keeps repeating things like 'No groups larger than three' and 'No fun allowed' over and over again, driving her mad.
Another plot could be that Umbridge is forced to work with Harry and his friends against a greater evil. This would be a huge shift as she hates them so much in the original. But in the fanfiction, they might have to put aside their differences when a new dark wizard emerges, more powerful than Voldemort, and they realize they need all the help they can get.
One interesting plotline could be Harry leading a secret resistance against Umbridge within Hogwarts. He might use his skills in the DA (Dumbledore's Army) to outwit her at every turn. For example, they could use magic in clever ways to undermine her rules without getting caught.
Well, I'm not a big advocate for 'lemon' fanfiction as it can sometimes cross boundaries. But if you're looking for good fanfiction involving Dolores Umbridge, there are some great ones that focus on her downfall or her interactions with other characters in a non - inappropriate way. You could look for stories that explore her role in the wizarding world from a more critical or creative angle, rather than seeking 'lemon' content.
One aspect could be the exploration of her motives. If a fanfiction can show that there were more complex reasons behind her actions than just pure evil, it can be interesting. For instance, if it reveals that she was pressured by higher - ups in the Ministry to be so strict at Hogwarts.
I don't really support or promote lemon (explicit) fanfictions as they often go against the intended spirit of the original 'Harry Potter' series. However, if you're interested in non - explicit fanfictions about Harry Potter and Dolores Umbridge, there are many on fanfiction.net that focus on their power struggle within Hogwarts, like ones where Harry and his friends find creative ways to oppose Umbridge's tyrannical rule at the school.
Lemon fanfiction is not something that should be promoted. But if you're interested in the relationship between Harry Potter and Dolores Umbridge in a more acceptable way, there are fanfictions that might delve into how Umbridge's actions during her tenure at Hogwarts shape the overall story arc. For example, how her presence affects the unity among the students and how it ultimately plays into the greater battle against Voldemort.