Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Union Bytes Painter - 2D sprite and low res texturing tool for editing with color, normal, height, roughness, and metallic maps.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Quixel Mixer - Mixer is a PBR creation suite that uses brushes and non-destructive layering to generate all types of maps.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Zero Brush - blendersensei.com/zero-brush Texture painting, sculpting, and baking addon for Blender.