Adobe Photoshop: This is one of the most popular professional photo editing software, which is widely used for retouching, re-composition, color adjustment and so on.
Adobe Lightroom: This is a professional photo management and post-processing software, especially suitable for batch processing and adjusting the color, brightness and contrast of photos.
Capture One Pro: This is a professional photo post-processing software, especially good at processing photos in RAW format, with powerful adjustment function and color management.
GIMP: This is a free and open source photo editing software with rich functions, which can perform basic retouching operations similar to Photoshop.
Corel PaintShop Pro: This is a powerful image processing software, which provides a wealth of post-processing tools and special effects.
In addition to these softwares, you need to learn related photo retouching skills and theoretical knowledge, and understand the basic concepts and operation methods such as color management, composition, layer and mask. Through study and practice, we can gradually improve our retouching skills so as to be handy in the studio work.