The 'Justice League' and 'Justice League Unlimited' animated series got it right way back in 2001-2006.
I mentioned something similar in my previous post, The REAL Batman Superman Movie, and felt the need to post an alternative after watching the 2017 Justice League release. The two animated series were from the team of Bruce Timm and Paul Dini who had already created a successful shows each for Batman and Superman.
The movie juggles multiple heroes and villains while still pushing pushing the story along. You actually care about the characters and believe that there is some logic what motivates them.
So if you're feeling bummed after watching the recent Justice League movie, then sit back and full screen this far superior version of the JLA.