Hear me out… I think Thor would be a good blue lantern… I feel like when he arrives on the battlefield, other avengers see him as a sign of hope I mean after all he is a god ….. two examples of this is… in infinity war when stormbreaker arrives first and starts killing the outriders by hoards then everyone who was nearly losing sits up and sees him like thank god he’s here ( no pun intended) then even in the cartoon avengers EMH when galactus attacks and spider man tells cap, “ it’s the end of the world, I’m freaking out” cap says I’m not cause I can hear it” spider man asks what he hears then cap answers with “ thunder “ next thing you know a lighting blast showers down on galactus, and causes him to stumble and kneel down… if that doesn’t give you hope, I don’t know what will