One of the best tank mods in Minecraft 1.12.2 called UNU Military. A large number of military equipment will appear in the game, which you can use during battles with enemies.
The SimpleOres mod will add a large number of new ores to the game that can be easily used to create new items, weapons and armor. Sometimes it happens that diamonds and iron start to get bored and then this wonderful mod comes to the rescue.
Glided Netherite Mod will allow you to create new armor and weapons as well as tools from new blocks. New items will be much better than even diamond ones, so this mod is quite a good sequel for you.
Everyone who played Doom would probably like to get the same monsters and such weapons in Minecraft. Now you can get not only new items but also a complete list of demonic creatures from the original game.
FunItems Mod will add cool new items and weapons, as well as armor to Minecraft. In any case, for any player, this mod will bring only the coolest and most necessary items.