Fanfic galore
Sorted in alphabetical order, series that only have one work written for it can be found in "others" at the bottom of the list.
Beware that some of these fics are purely in the SFW category because it's not porn. Some fics might still have triggering content, so I recommend you always read the tags and warnings on each individual fic.
Tokusatsu
Number of works: 10
Types: 9 oneshots, 1 oneshot series (6 chapters)
Series: Kaizoku Sentai Gokaiger, Kamen Rider Decade, Kamen Rider Fourze, Kamen Rider Gaim, Kamen Rider OOO, Zyuden Sentai Kyoryuger, Kamen Rider Gavv, Kamen Rider W
Types: 9 oneshots, 1 oneshot series (6 chapters)
Series: Kaizoku Sentai Gokaiger, Kamen Rider Decade, Kamen Rider Fourze, Kamen Rider Gaim, Kamen Rider OOO, Zyuden Sentai Kyoryuger, Kamen Rider Gavv, Kamen Rider W
Other
Each series from this list all have one fanfic each.
Series:
Bungou Stray Dogs
Café Daikanyama
Dynamic Chord
Elegant Youkai Apartment Life
Hetalia: Axis Powers
Horimiya/Horimiya-san to Miyamura-kun
Itsuwaribito Utsuho
Kamonohashi Ron no Kindan Suiri
Messiah Project
Paradise Kiss
SK8 the infinity
Tokyo Revengers
Uta no Prince-sama
Yatamomo
Yu-Gi-Oh! GX
Zettai Kaikyuu Gakuen
Types: Oneshots, 1 chapter fic (YGOGX, 32 chapters)
Bungou Stray Dogs
Café Daikanyama
Dynamic Chord
Elegant Youkai Apartment Life
Hetalia: Axis Powers
Horimiya/Horimiya-san to Miyamura-kun
Itsuwaribito Utsuho
Kamonohashi Ron no Kindan Suiri
Messiah Project
Paradise Kiss
SK8 the infinity
Tokyo Revengers
Uta no Prince-sama
Yatamomo
Yu-Gi-Oh! GX
Zettai Kaikyuu Gakuen
Types: Oneshots, 1 chapter fic (YGOGX, 32 chapters)