This is my current list of champions could someone guide me in the right direction as far as which ones to keep and which ones to use for upgrading rank. Thanks in advance!

I would not invest in any of these but maybe the first one (you have to build a team, go for the first 4 and maybe Jizoh until you get decents chars). Save all your tomes. No green hero in the game is worth it (I do not even invest in blues except to rank up others). Look for a tier list in the internet.