Creating Mobs with NeoForge

I recently installed MCreator and the application allowed me to create my default mod on NeoForge. I am trying to create a monster on my mod, but I found that Blockbench does not accept monsters under NeoForge. Does anyone have a solution so that I can model a monster under NeoForge? If you know of other Minecraft animation applications than Blockbench I can do with it. (My mod is in version 1.21.1).



 

As a french, my post was made with a translator so there may be errors.