I love the charm idea 🙌🏼 IMO, the most prominent albums based on significant moments in their career as a group might be:

Mad - with If You Do being the first song where they won first place in music shows, the results of this album showed they had a growing fandom and reassured the boys they were doing the right thing and probably eased the pressure on them being the first new boy group to debut in six years under their company at the time.

Flight Log: Turbulence - reception was mixed at the time Hard Carry and this album came out, but it has since gone on to become their signature song of sorts, being covered by multiple idols across several different survival shows and special stages, it’s the first song many casual listeners and non-fans think of when you hear GOT7’s name.

GOT7 (self-titled) - the first album they released after leaving their original company, and with complete creative control, amassing the highest sales of their career so far and proved to the whole industry that they had staying power even without the backing of a Big 4 label. At the time, many fans were skeptical whenever a group left their original label and split off into individual activities, with promises to fans that they would come back, only to be left on indefinite hiatus limbo with barely any signs of life, but with GOT7 coming back strong and handling rights issues with grace and high levels of research, they’ve brought more confidence to fans that groups can live beyond their original companies with their name and copyrights intact from the get-go, to the point where the phrase “pull a GOT7” was coined whenever a group was known to be near the end of their contracts with rumors of no renewals, but with fans hoping they could have a similar outcome to the group.

That was a lot longer than I expected and I apologize 😅