I needed a way for giants from Systemzee's giant mod (see https://mods.syszee.com/) to spawn naturally, so I ended up using this mod. It worked fine and the giants spawned perfectly.

However, the problem is that one of the boss giant's attacks summons more zombies, and every time this happens, 1 out of the group spawns as a giant. This new giant is also able to do the same attack, which summons another giant, so on and so forth, and given how they have a ton of health, it's not easy to get rid of an infinitely replicating giant.

If there is a way to get around this by adding a config for allowing the player to change what mob it replaces instead of zombies, it would be much appreciated.

I assume you mean the Giant Spawn mod. Is that correct?
Note that this repository hosts issues for over 130 different mods and that you should specify what mod you are referring to when you open an issue here.

I assume you mean the Giant Spawn mod. Is that correct? Note that this repository hosts issues for over 130 different mods and that you should specify what mod you are referring to when you open an issue here.

sorry, i thought i had mentioned that, yes i mean the giant spawn mod