One possibility could be Harry facing a new dark wizard threat that the Ministry is trying to keep under wraps. As an Auror, he stumbles upon some clues and has to work in secrecy to figure out what's going on before it's too late.
Another plotline might be Harry training a group of new aurors. He could pass on his unique experiences and skills, while also dealing with the challenges of different personalities and abilities among the trainees. This would not only show his growth as an auror but also his leadership skills.
Hermione would be a great ally. With her vast knowledge of magic and her logical thinking, she could help Harry solve complex cases. Ron could also be an ally, using his loyalty and his own skills in combat and magic. Neville might be another one, having grown into a confident and powerful wizard, he could bring his unique skills in herbology and his courage to the Auror department to support Harry.
One possible plot twist could be that Harry discovers a dark conspiracy within the Auror department. For example, some Aurors might be secretly working for a remnant of Voldemort's followers. This would put Harry in a difficult position as he has to expose them without causing panic among the wizarding community.
One possibility could be that he's facing a very powerful dark wizard. Maybe this wizard has some new and unknown dark magic. Harry tries his best to fight but is ultimately overpowered. His friends back at the Ministry are left in shock and grief, and the wizarding world has to deal with the loss of their hero.
A possible plot is that there is a mysterious dark wizard on the loose who seems to be targeting both Harry and Draco's families. They must put aside their differences and work as Auror partners to protect their loved ones. Along the way, they discover secrets about each other that they never knew before, like Draco's hidden acts of kindness during the war that Harry was unaware of. This new understanding helps them bond and fight the common enemy more effectively.
Well, they could start as Auror partners in a case where Muggle - born wizards are disappearing. Harry suspects it has something to do with the old Death Eater ideology still lingering. Draco, on the other hand, is more skeptical. As they investigate, they find clues that lead them to an abandoned Death Eater hideout. Here, they face various magical traps and have to rely on each other's unique magical knowledge. Draco's knowledge of the Dark Arts and Harry's intuition work together to get them out of dangerous situations and closer to solving the mystery.
A new dark wizard who has emerged from the shadows, someone who idolized Voldemort and is trying to pick up where he left off. This antagonist could be using new and more insidious magic that Harry has to figure out how to combat as an Auror.
He could have to take a long time to recover, which might make him feel frustrated and impatient. It could also lead to him doubting his abilities as an Auror for a while.
One interesting storyline could be Harry Potter as Head Auror dealing with a new dark wizard threat that is using ancient and forgotten magic. Another could be his struggle to reform the Auror department, facing resistance from old - fashioned Aurors who are reluctant to change their ways. Maybe a plot where he has to solve a mystery within the wizarding world that involves powerful magical artifacts being stolen and used for nefarious purposes.
One interesting plotline could be the Auror's first big case. Maybe they have to track down a dark wizard who has a new and dangerous form of magic. Another could be their interactions with other well - known characters from the Harry Potter series in their Auror work, like dealing with Hermione's new magical research that has some unforeseen security risks.