I've been looking through the forging upgrades for weapons in preparation for post-game content and it seems as though it would be better to know about which things are more worth getting ahead of time, since gold/skills take a while to farm/grind. Of course it's best to go for variety, but what are the "must-haves" for this game for various types of units? Also, I personally went with rings and shields instead of weapons for healers and armored units, does that seem like a good strat, or maybe just confirmation bias?
I made a small list of (imo) some of the best choices. I don't think I'm missing anything, though I haven't done as much research as others have, probably.
[Spoiler: Weapon names listed below]