Adventure Time: Marceline Gone Adrift: The Tuffbones are benevolent doglike aliens who feed harmlessly off artistic creativity and use it to power their civilisation.
Atari Force: Psyklops psychically feeds off the pain of his victims, and uses his power to trap his victims into reliving painful past memories.
Caballistics, Inc.: At one point Hannah Chapter and Lawrence Verse go hunting for a psychic vampire who feeds on the loneliness and despair of its victims. It was also a shapeshifter, as it assumed the form of a deceased girlfriend of Hannah.
DV8: Powerhaus absorbes emotions to fuel his growth and super-strength. He can use his own emotions, but he's so mellow that it's not very reliable.
Lucifer: Demons in Hell distill the torments of the damned into a powder which they use like snuff.
My Little Pony Micro Series: Like the Windigoes, the Gremlins from Issue #2 feed off negative feelings, and use weather to continually instill these negative emotions in a perpetuating cycle.
The Evronians feed on emotions and can also use them to power their technology. That's also why they're fixated on Earth: harvesting enough emotions to both feed themselves and power their technology is beyond their natural abilities and they need to use weapons that leave the victim unable to feel emotions anymore, but Earthlings are so emotionally rich that one shot often isn't enough to drain them and they can recover from it— meaning that Earth is an unending buffet for them.
The final issue of the reboot also deconstructs the part of the trope where emotion eaters tend to be evil: when Zondag went back in time to prevent the birth of the Guardians of the Galaxy, the new timeline resulted in Evronians without emotion-powered technology that lived peacefully with other species, feeding themselves by just draining negative emotions when asked.
