These are all the official SDR2 related things I’ve ever posted.

Summaries
Summaries of each chapter in the game’s main plot - they’re really quick and dirty/possibly inaccurate because I went off memory while writing, especially at the beginning (thinking of it now, it’s kind of embarrassing), but the ones at the back are longer and have tons of pictures.
Orenronen’s LP is here.
In the interest of maintaining translational accuracy (as far as possible), here are Misa’s and Koori’s translation notes regarding the LP, which I’d highly recommend you read if you’re going to read deeply into the character dialogue and/or interested in getting as accurate a picture of the game as possible since they both tackle nuances of the language that Oren might not have brought across. (Beware of spoilers in certain posts though)
In addition, Misa does a livestream of the game on weekends (for now).

Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 5 end + Chapter 0 (full translation for 0)
Chapter 6 (pt. 1)
Chapter 6 (pt. 2)
Epilogue (full translation)

Climax Inference comics

Main game snippets
Bits and pieces from here and there.

Chapter 1: Despair Tropical
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Chapter 2: Sea and Punishment. Crime and Coconuts
Komaeda’s speech

Chapter 3: Seashore-scented Dead End
Hinata’s dream

Chapter 4: Do SHSL Robots Dream of Clockwork?
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Chapter 5: You Smile at the Hope Known As Despair
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Chapter 6: This is the end ~Goodbye Despair Academy~
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Dangan Island
Posts regarding the aftergame extra minigame, Dangan Island. What would have happened if the game didn’t start off the way it did…even though it’s lighter than the main plot, these still contain spoilers regarding the characters’ personalities and identities.

Kokoronpa - Komaeda Nagito
Kokoronpa - Pekoyama Peko
Kokoronpa - Koizumi Mahiru
Kokoronpa - Nanami Chiaki

Ending - General

Ending - Komaeda Nagito
Ending - Togami Byakuya
Ending - Pekoyama Peko
Ending - Nidai Nekomaru
Ending - Kuzuryuu Fuyuhiko
Ending - Sonia Nevermind
Ending - Tsumiki Mikan
Ending - Koizumi Mahiru
Ending - Mioda Ibuki

Miscellaneous events
Komaeda gifs

Dangan Ronpa IF
A hypothetical, alternate storyline to Dangan Ronpa that was written by Narita (DRRR!!, Baccano!) and included in SDR2. Contains endgame spoilers.
12/35 done.

Part 1
Part 2
Part 3