Curate, connect, and discover
eldritch green lantern ideas:
ring slowly starts fusing with the finger it's on until one day the finger just glows, there's no more ring
bleeding green (duh)
so willful that reality tends to bend around them in small instances, like coffee always being warm or never having to wait for the elevator, or someone nearby tripping
the ring stops translating other languages because they just start understanding/speaking them eventually
the constructs chosen by Earth Lanterns stop looking like Earth items and more alien, older, ancient
Lanterns slowly forgetting to take off their uniforms and just start wearing them all the time
separating them from their ring will cause very, very bad things to happen
not eating or drinking for several days, then several weeks, then several months at a time without noticing
unintentionally feeding (mentally) off of strong-willed people, and even encouraging disagreement just to sit in the middle of it and feel something almost warm again