You're better off creating a 3D model and then taking image-grabs of it facing different directions/doing different poses from an isometric perspective to get y

You're better off creating a 3D model and then taking image-grabs of it facing different directions/doing different poses from an isometric perspective to get your isometric sprites, with the genAI tools of today without a skilled 2D artist at hand. If you aren't ready to rig and adjust model poses in a 3D tool, you might be better off generating each movable model part as a separate mesh and just arranging them in space before doing the above.