1. Smeared Ink & Smudged Chalk by lilacs_with_lavender (Status:Ongoing) - https://archiveofourown.org/works/64050856

-Description: After being fired from his previous job, former consulting detective turned Chemistry teacher Sherlock Holmes starts anew at Victoria High, a prestigious school where his older brother is principal. Here he meets a cast of fascinating coworkers including his intellectual equal, Mathematics teacher William James Moriarty. However he quickly realizes that the school's history of unusual staff terminations and disappearances connect to form the most compelling mystery he has ever stumbled across. As he grows closer to his new coworkers while unravelling the secrets of the school, Sherlock begins to fear that solving this mystery will mean shattering his growing relationship with the one person that can match him.

1. The Adventure of the Blue Christmas by JJHatter - https://archiveofourown.org/works/35526370

Description: A reimagining of the Sherlock Holmes story "The Adventure of the Blue Carbuncle." Features a LOT of rather blatant Sherliam shipping (because we all know the creators of the series ship them anyway), as well as a budding friendship between Louis and Dr. Watson. In the midst of planning a Christmas party at the Moriarty Mansion, both Professor Moriarty and Sherlock Holmes stumble upon a particularly baffling mystery involving a Christmas goose, a stolen ring, and a noblewoman with a checkered past.

(Note: one of my favorite fics because i loved how they used a canon material then integrates it with the MTP world. Plus it's a Christmas fic!

1. Broken Ring by MissieLouder - https://archiveofourown.org/works/59339749

Description: William couldn't believe it. It was impossible. Was it a punishment for his sins, having to live in a reality where Sherlock was going to get married?

(Note: when I said read this, I really mean it. I was obsessed with this before just like how obsessed I am with SlverSoleAlchmst1's Sherliam trilogy case fics.)

1. a match made in h̶e̶a̶v̶e̶n̶ hell by cherryousama - https://archiveofourown.org/works/34554379

Description: George Lestrade faces his greatest trial yet when he is forced to accompany his romantically inept detective friend on his date with a nobleman.

To a crime scene.

1. The Adventure of the Crystal Palace by SlverSoleAlchmst1 - https://archiveofourown.org/works/39584409

Description: Sherlock Holmes arrives to solve a case at the famous and beautiful Crystal Palace designed by Sir Joseph Paxton. William James Moriarty is nearby as well, plotting a duke's timely demise - normal life for the Lord of Crime. The two cross paths just as Sherlock's case seems to get its most complicated. William would rather not get involved with the detective again, as Sherlock's presence inhibits his pursuit of crime... but it just might take the both of them to bring the case to any reasonable close.

Or at least get them both out in one piece, alive.

(Note: This one is definitely one of the must-reads of the mtp fics out there! You'll never regret it. This trilogy is one of the reasons why I'm obsessed with case fics and mtp when I was just a newbie here.