The hotter otaku dances are the troupe dance, the secretary dance, and the love kill dance.
1, group dance.
If you take into account the era of the work and the circulation of the otaku dance itself, the dance from the 2006 version of "The Melancholy of Ryouga Haruhi" TV anime ED is bound to be at the top of the otaku dance ranking. The dance is also known as the "group dance" because it is performed by characters from the SOS group in the movie.
2. The Clerk Dance.
The Chibana Clerk's Dance is arguably the hottest otaku dance in recent years; after all, Kaguya-sama Wants Me to Confess is itself the best-received Japanese romance anime in the world in recent years. While the anime's BD sales in its home country of Japan aren't exactly stellar, it's rated very highly on anime sites around the world.
3. Love Kills Dance.
The Love Kills Dance is from the 2009 TV anime "Love Kills Baby," produced by J.C. STAFF, and is also a character dance that appears in the ED section.