"Modders":
__calcium
AlzarinRed
Games Repainted
kawaiikaorichan
Lady Lunanova
MainMemory

Xitter sucks because of:
BasedTransPosts
Bobposting
Clara Sorrenti/Keffals
DAclassicgamer/DAepikartman
Doobus Goobus
Erin Reed
fantano
Gamechamp3k (more like Fetish Chimp lol)
KairiHawk
Katherine Gibes/TransSalamander
Lady Lunanova
LibsOfTiktok (more like Fibs of Tiktok)
Liz Fong-Jones
The Nintendude
PearlTrans
RosieRoberta
Saberspark
Saltydkdan
Sean Sohr
ThatOneCalledRPG
UltimateDSEris

YouTube (more like ThemTube at this point):
24 Frames of Nick
8thPlaceDave
Acheeto
The Act Man/Act Man TV
ADN MARIO FUN/BOX STORY GAME/other Elsagatesque trash that looks AI-generated
aDrive
AintNoobie
akidearest
Alpha Jay Show/Castoon
Alpharad+Alpharad LIVE
Altrive
Anthony Padilla
Artcord Collaborative
Asmongold TV/Asmongold Clips
Atop the Fourth Wall
Awesomemay (more like awfulmay, am I right?)
BaptismOnFire
BeatEmUps
beat fox15
beerpup
Bennett the Sage
boogie2988
Brandon Buckingham
Bringle
CandyEvie/Luvie
CaptainKidd
Cartoonshi
Cas van de Pol
CDawgVA
Channel Frederator/CartoonHangover/The Leaderboard/Get in the Robot/Outside the Robot
Channel Pup/Sunset City
chaomix
Chickeninja42
Chris Bores Neo/Irate Gamer
CircleToonsHD
cjya+cjya Vods
The Completionist(ic Thief lol)
ContraPoints
Craig Thompson/Mini Ladd
CybeR
Cybershell+Cybershell & Knuckles
dabhdude
DAGames
Daily Dose of Internet
Danger Dolan/Super Planet Dolan/Dolan Dark
Doobus Goobus
DougDoug+DougDougDoug+DougDougDougDoug
Dovendraw/ExtraDoven
DramaAlert
Drew Gooden
Dr Shaym
Dumbsville
EazySpeezy/EaziestSpeezy
Eddy Burback (more like Reddy Burntback lol)
Egoraptor/Game Grumps (more like Game Slumps or Game Rumps)
Elvis The Alien
EmpLemon
EverythingisDND
F1NN5TER
Failboat
Filter
Fir
FishMTG
Flamingo
Foekoe
FoldingIdeas
gabi belle
Gamechamp3000 (just watch Game Center CX instead)
The Game Chasers
TheGamerFromMars
Game Sack
Gigguk
GiIvaSunner/SiIvaGunner
h3h3 Productions
Hack the Movies
HarleyTBS
HatsOffMedia (NOT to be confused with the seemingly superior Hats Off Entertainment)
Hunicast
Hunter Smells
idubbbz
I Hate Everything
iiluminaughtii/iiluminaughtea
illymation
Infinite Bits
Internet Anarchist
Internet Historian/Incognito Mode
Jacob R
Jaiden[Animations] (shut the hell up for once)
JakeandJoelareMagic
Jake and Logan Paul
Jenny Nicholson
Jetsen
JobbytheHong
Johnny 2 Cellos
JREG
Jrose11
jschlatt+jschlattLIVE
Just a Robot
Justin Bae
Just Stop/Just Go
KaggyFilms
Kappy
Karl Andersson
Karl Jobst
Knarfy
KSI
KumoCommentary
Lady "I don't have that money" Decade
Laugh[ability]
LegalEagle
lewissmle
Lily & Mikaila [Orchard]
Linkus7
Linus Tech Tips/Techquickie/ShortCircuit/TechLinked (How many channels do these numbskulls want?!)
LioConvoy
LS Mark/Midnight Mark/Splash Dash/Meeting Halfway (Gen Z's Lily Orchard)
Ludwig
Lute
Magic The Noah
maldhound
MandatoryPixel
Marc Lovallo
Matt McMuscles
Mawde Wile
MeatCanyon
Memeulous
Misty Chronexia
Mother's Basement
MrBeast/MrBeast Gaming/Beast Reacts
MrCreepypasta
Nawnii
Noodle
Nux Taku/nuxanor
Nyarly
O3
OneyNG/OneyPlays(WithMyEyes)/OneySays/SleepyCast/SleepyCabin
oompaville
Pat the NES Punk (more like Pat the Cringe Drunk)
pChal
penguinz0/HugeCharles/Moist Charlie Clips/Moist Moments/Moistcr1tikal Reacts To/Critical Reacts (A Dose of Buckley is, has been, and will always be better)
PhoenixSC
Plainrock124
Pod Town
PointCrow
Poki[mane]+Pokimane Too
Press A!
Pyrocynical/PyroLIVE
QuantumTV
Quinton Reviews
ralphthemoviemaker
Rarran
Raymundo 2112
raysfire
RebelTaxi
RedFalcon
ReviewTechUSA
Rev says desu
RoDev
RTGame
Ryan Presents
Saberspark+Saberspark 64
Saltydkdan
SaltyPhish
SamHuggins
Sample
Sarah Z
Schaffrillas Productions
Scott the Woz/Scott's Stash/Scott's Snippets
Seer
Shyguymask
SilokHawk
Sleigher
SmallAnt+SmallAnt VODs
SockStudios
SomeOrdinaryGamers+SomeOrdinaryPodcast/SomeOrdinaryHighlights
SonnyTM
Sophist/Party Crashers
The Spiffing Brit
Sr Pelo+Pelo Streams (more like Pee-low lol)
SSSniperWolf
stanz
Steve Reviews
Stryder7x
Summoning Salt
Super Bunnyhop
tamago[2474]
TerminalMontage+TerminalMontage Clips
TetraBitGaming
TheAlmightyLoli
TheMysteriousMrEnter (get your sh** together for once)
TierZoo
Tipster
Top Hat Gaming Man (more like Top Hat Begging Man, according to retrowatcher)
Trash Taste (The Anime Man[child] is a creep, apparently)
Turkey Tom/TomDark/TomDarkLIVE
Twobold
UltimateDSfan/UltimateHellscape/8BitComms
Vaush
Veridis Joe
videogamedunkey
vinesauce and its subchannels
WatchMojo.com/MsMojo
Wendigoon
WhatCulture and its subchannels (more like ButtCulture)
WIRED (Makes Me TIRED)
Wondermat
WULFF DEN
Xploshi
xQc
YMS/YMS Highlights/YMS Clips/YMS Watch-Alongs/AnUnkindness/Sardonicast
other a**holes and enablers I'm sure I've forgotten the names of

Groups:
3GI Productions
764
advanced.gg
Explosm
Fangamer
gamersupps.gg
lolcow.farm
Maestro Media
Nicalis (insert Nicholas Cage joke here)
No Limits Fun
NoLimitsPedia/No Limits Blox/Skibidi Farms
Ownaj
Prostasis Foundation
Puyo Nexus
Retroware/Screenwave Media (Hey, it's Justin!)
Sharkrobot
Youtooz
Zone Archive/Zone Toons

Misc/Multi-platform:
Amanda Lochmann
Ava Tyson
Belle Delphine
benthelooney
BlueFolf
Bowblax
CWC
Cyraxx
Daniel Larson
fallenchungus/datsmojo
Fetty Fave/ROBLOXFave
Froge
gone_fishinq
Grummz
Harry Partridge
Hector Martin/Asahi Lina
Jack Doherty
Joel Guerra
Karl Hamburger
Luke Smith
Mick Lauer/RicePirate
Mystic Mongrel
NedWolfkin
Nicholas Perry/Niko[cunt]o Avocado[pe]
Nitrolord
Peppermint Swirl
Phong Tran/S2PID/S2LSOFTENER
Pipkin Pippa
psychicpebbles/Zach Hadel
Ray Rants
Rebeccah Kruleski/Rebeccah Starlight/StarGiantess/Star Giant Productions
SB99stuff
Shadman/TheShadling
SolidMario
Sophie Labelle
Spazkid
Stealth_Brock
SuperSpoe/officialshitlord
Terry Davis
Vinson Ngo/Bleedman

In conclusion: nearly everyone is terrible!