I have several Humble Bundle games, only redeemable on Steam and I can get you keys or gift links (some people only want keys, some only gift links, so I try to ask in advance).
You can see my Steamtrades profile here:
https://www.steamtrades.com/user/76561197980795510 I want games from my GOG or Steam wishlist and I don't care if you offer me 1 game for 3-4 of mine, I'll probably still take your offer and be happy with it.
Puzzle Agent 1 Telltale 2017 bundle
Puzzle Agent 2 Telltale 2017 bundle
Türkiye-Syria Earthquake Relief bundle
112 Operator
911 Operator
Alchemist's Castle
Death Squared
Guilty Gear X2 #Reload
Hack 'n' Slash
MirrorMoon EP
Monaco
Orbital Racer
Pill Baby
Remnants of Naezith
Rym 9000
Soulblight
Stacking
stikir
Stygian: Reign of the Old Ones
Symmetry
System Shock 2
The Amazing American Circus
The Inner World
Worms Rumble
X-Morph: Defense Complete Pack
Zombie Driver HD
Edit: altosy gave me an offer I couldn't refuse, so I've removed Bionic Commando and Sunlight from the list.