I'm not a big Archie fan myself, so this collection seems as good a place as any to start to me, but if you have a better suggestion please join the conversation.
I do know that the series was rebooted. Although, if you ever need to fake your way through a conversation about comics a good starting point is "well what did you think of the latest reboot?" So, knowing that there was a reboot doesn't mean much in itself, but the reason I know there was a reboot is because my current all time favoritest comic book writer, Ryan North, was writing on the rebooted Jughead for a little while. I haven't read them yet, but I cannot recommend highly enough Ryan's work on The Unbeatable Squirrel Girl. I could gush for days, as evidenced by the fact that I really didn't need to go down this tangent at all. Do yourself a favor and get started at the beginning.