In all honesty Riverdale just seems like someone did predictive text for the show and did ad libs too.

And it also just seems like it's glee but darker, and the characters are just cheap carbon knock offs of the glee characters and the main ships just seem like they're a copy from glee. I get the creator of Riverdale was one of the executive producers on glee, but the show and even the couples and the cheating storylines that i even mentioned in the first part, doesn't need to be an exact copy of Glee. Riverdale is based on the Archie comics, so Riverdale creators should actually research the comics and actually use storylines from there instead of glee.

In all honesty I have nothing except I would these:

Have it that Fangs told his story of how he came out to his parents
How Toni came out to her grandfather
Jughead be asexual- just like Cole wanted to do
Archie would never have storylines like Finn. Archie is his own character and deserves his own storylines that aren't like Finn's at all.

I would go to the comic books and take storylines out of there for the show instead of taking from glee and reusing their storylines.