Champion Crate 1 - 0.05-0.1 keys
Champion Crate 2 - 0.05-0.09 keys
Champion Crate 3 - 0.05-0.09 keys
Champion Crate 4 - 0.1-0.2 keys

Player's Choice Crate - 0.07-0.12 keys
Turbo Crate - 0.05-0.1 keys
Nitro Crate - 0.08-0.13 keys
Overdrive Crate - 0.08-0.13 keys

Accelerator Crate - 0.1-0.2 keys
Velocity Crate - 0.1-0.15 keys
Victory Crate - 0.25-0.33 keys

Haunted Hallows Crate - 0.05-0.8 keys
Secret Santa Crate - 0.05-0.8 keys

Dominus GT - 0.5-1 key (Champion Crate 1)
Takumi RX-T - 0.33-0.5 keys (Champion Crate 1)

X-Devil MK2 - 0.33-0.5 keys (Champion Crate 2)
Road Hog XL - 0.33-0.5 keys (Champion Crate 2)

Breakout Type-S - 0.5-1 key (Champion Crate 3)

Octane ZSR - 0.5-1 key (Champion Crate 4)

Endo - 0.5-1 key (Turbo Crate)

Mantis - 0.5-1 key (Nitro Crate)

Centio V17 - 0.5 keys (Overdrive Crate)
Animus GP - 0.5-1 key (Overdrive Crate)

Jager 619 RS - 0.75-1 key (Accelerator Crate)

Imperator DT5 - 0.75-1 key (Velocity Crate)

Werewolf - 1-2 key (Victory Crate)

Chakram - 0.33 keys (Champion Crate 1)
Photon - 0.5 keys (Champion Crate 1)
Looper - 0.5 keys (Champion Crate 1)

Voltaic - 0.5-0.75 keys (Champion Crate 2)
Lobo - 0.25 keys (Champion Crate 2)

Troika - 0.25 keys (Champion Crate 3)
Pulsus - 0.5 keys (Champion Crate 3)
Discotheque - 0.5 keys (Champion Crate 3)

Spiralis - 0.33 keys (Champion Crate 4)
Zomba - 0.5-0.75 keys (Champion Crate 4)
FSL - 0.5 keys (Champion Crate 4)
ARA-51 - 0.5 keys (Champion Crate 4)

Septem - 0.33 keys (Turbo Crate)
Roulette - 0.5 keys (Turbo Crate)
Kalos - 0.5 keys (Turbo Crate)

Triplex - 0.33 keys (Nitro Crate)
Draco - 0.75-1 key (Nitro Crate)
K2 - 0.5 keys (Nitro Crate)

SLK - 0.33 keys (Overdrive Crate)
FGSP - 0.33 keys (Overdrive Crate)
Turbine - 0.33-0.5 keys (Overdrive Crate)

Gaiden - 0.5 keys (Accelerator Crate)
Saptarishi - 0.5 keys (Accelerator Crate)
Chrono - 0.5-0.75 keys (Accelerator Crate)
Clockwork - 0.5-0.75 keys (Accelerator Crate)

Equalizer - 0.5-1 key (Velocity Crate)
Hikari P5 - 0.5-1 key (Velocity Crate)
Hiro - 0.5-1 key (Velocity Crate)
Yuzo - 0.5-1 key (Velocity Crate)

Revenant - 0.33-0.5 keys (Haunted Hallows Crate)
Grimalkin - 0.33-0.5 keys (Haunted Hallows Crate)
Cauldron - 0.33-0.5 keys (Haunted Hallows Crate)

Wonderment - 0.5-1 key (Secret Santa Crate)
Christmas Wreath - 0.5-1 key (Secret Santa Crate)
Peppermint - 0.5-1 key (Secret Santa Crate)

Trinity - 0.25-0.5 keys (Champion Crate 1)

Polygonal - 0.25-0.5 keys (Champion Crate 2)
Pixel Fire - 0.25-0.5 keys (Champion Crate 2)

Hypernova - 0.25-0.5 keys (Champion Crate 3)
Dark Matter - 0.25-0.5 keys (Champion Crate 3)

Proton - 0.25-0.5 keys (Champion Crate 4)

Xenosplash - 0.25-0.5 keys (Turbo Crate)
Tachyon - 0.5 keys (Turbo Crate)

Hexphase - 0.25-0.5 keys (Nitro Crate)
Neothermal - 0.25-0.5 keys (Nitro Crate)

Magic Missile - 0.5 keys (Overdrive Crate)

Power Shot - 0.5 keys (Accelerator Crate)

Fractal Fire - 0.5-1 key (Velocity Crate)

Scary Pumpkin - 0.33-0.5 keys (Haunted Hallows Crate)

Winter Storm - 0.5-1 key (Secret Santa Crate)
Yuletide - 0.5-1 key (Secret Santa Crate)

Light Speed - 0.25-0.5 keys (Overdrive Crate)
Blazer - 0.25-0.5 keys (Overdrive Crate)
Friction - 0.25-0.5 keys (Overdrive Crate)

Lightning - 0.33-0.5 keys (Accelerator Crate)
Hot Rocks - 0.33-0.5 keys (Accelerator Crate)

Zigzag - 0.5-1 key (Velocity Crate)

Candy Cane - 0.5-1 key (Secret Santa Crate)

Furry - 0.2-0.33 keys (Turbo Crate)

Circuit Board - 0.2-0.33 keys (Overdrive Crate)
Glossy Blocks - 0.2-0.33 keys (Overdrive Crate)

Pearlescent - 0.33-0.5 keys (Accelerator Crate)

Anodized - 1.5-2 keys (Velocity Crate)

Burlap - 0.2-0.33 keys (Trade-Ups)
Knitted Yarn - 0.33-0.5 keys (Trade-Ups)
Cookie Dough - 0.33-0.5 keys (Trade-Ups)
Moon Rock - 0.2-0.33 keys (Trade-Ups)
Metallic (Smooth) - 0.33-0.5 keys (Trade-Ups)
Metallic Pearl (Smooth) - 0.33-0.5 keys (Trade-Ups)

Ball King - 0.1-0.2 keys (Rare)
Soccer Ball - 0.1-0.2 keys (Rare)
Dead Serious - 0.25-0.5 keys (Rare)
Sticker Bomb - 0.1-0.2 keys (Rare)
MDGA - 0.1-0.2 keys (Rare)
Shattered - 0.1-0.2 keys (Rare)
Tagged - 0.1-0.2 keys (Rare)
Rockat - 0.1-0.2 keys (Rare)
Call Sign RL - 0.1-0.2 keys (Rare)
Hearts - 0.1-0.2 keys (Rare)
Narwhal - 0.1-0.2 keys (Rare)
Maximon - 0.1-0.2 keys (Rare)
Dendritic - 0.1-0.2 keys (Rare)
Turtle - 0.1-0.2 keys (Rare)

Pigeon - 0.2-0.33 keys (Very Rare)
Unicorn - 0.2-0.33 keys (Very Rare)
Nice Slice - 0.2-0.33 keys (Very Rare)
Starbase ARC - 0.2-0.33 keys (Very Rare)
Moai - 0.2-0.33 keys (Very Rare)
Beaten Egg - 0.2-0.33 keys (Very Rare)
Junk Food - 0.2-0.33 keys (Very Rare)

Salty - 0.5 keys (Very Rare)
Calculated - 0.5 keys (Very Rare)

Heatwave - 21-22 keys
Slipstream - 13-14 keys
Parallax - 9-10 keys
Labyrinth - 3-4 keys

Biomass - 5-6 keys
Hexed - 6-7 keys

20XX - 19-21 keys
Tora - 2-3 keys

Bubbly - 32-34 keys
Spectre - 5 keys

Chameleon - 35-37.5 keys
Storm Watch - 18-20 keys
Trigon - 27-28

Fireworks - 4-5 keys
Hellfire - 11-12 keys
Sub-Zero - 8-9 keys
Electroshock - 7-8 keys

Popcorn - 6-7 keys
Party Time - 11-12 keys

Dueling Dragons - 28-30 keys
Poly Pop - 21-22 keys

Reaper - 2-3 keys
Vampire Bat - 0.5-1 key

Happy Holidays - 2-3 keys

Alpha Cap - 170-190 keys (Topper)
Gold Rush - 1450-1600 keys (Boost)
Goldstone - 1075-1200 keys (Wheels)
Beta Nugget - 88-95 keys (Antenna)

There are profiles of middle mans:
https://gtm.you1.cn/profiles/76561198080465146/
https://gtm.you1.cn/profiles/76561198326217797
https://gtm.you1.cn/profiles/76561198097268841