Images:
Danbooru (danbooru.donmai.us)
E-Hentai (e-hentai.org)
Gelbooru (gelbooru.com)
kemono.su
morazzia.com

Free Comics:
cin.guru
ManyToon (manytoon.com)
nHentai (nhentai.net)
Pururin (pururin.to)

Premium Comics:
BuyAnime (buyanime.com)
DLsite (dlsite.com)
Fakku (fakku.net)
MangaPlaza (mangaplaza.com)

Free Videos:
Bellesa (www.bellesa.co)
GayMaleTube (www.gaymaletube.com)
hentai.animestigma.com
jav.guru
PornHub (pornhub.com)
PornoTube (pornotube.com)
sex.com

Premium Videos:
Adult Empire (www.adultempire.com)
AEBN (aebn.com)
HotMovies (www.hotmovies.com)
kink.com

VR:
POVR (povr.com)
VirtualRealPorn (virtualrealporn.com)
VR Bangers (vrbangers.com)

Stories:
iPlayboy (www.iplayboy.com)
Literotica (www.literotica.com/stories/)
Lush Stories (www.lushstories.com)

Free Games:
gog-games.to
new.lewd.ninja

Premium Games:
Denpasoft (denpasoft.com)
DLsite (dlsite.com)
Fakku (fakku.net)
JAST USA (jastusa.com)
MangaGamer (www.mangagamer.com/r18/)

Torrents:
1337x.to
AniDex (anidex.info)
sukebei.nyaa.si
Tokyo Toshokan (www.tokyotosho.info)

Experience-Enhancers:
BleachBit, multiplatform (www.bleachbit.org)
mpv, multiplatform (mpv.io)
MuPDF Viewer, Android
Sugoi Translator, Windows (blog.sugoitoolkit.com/sugoi-translator-toolkit-guide)
yt-dlp, Python package (github.com/yt-dlp/yt-dlp)
zathura, Unix-like (wiki.archlinux.org/title/Zathura)