hi! the adobe cc tools are quite essential and most employers ask of you to use them (unfortunately adobe is a very greedy company:((so it's not cheap) main are photoshop, illustrator and indesign.
I also add 3d objects that I model in Blender, it's free~~
If you want to go into web a bit more I'd recommend Figma it's free as well. And Readymag is good for making a creative website portfolio~
I look for many mockups and assets on gumroad, highly recommend it♡
I wish u lots of luck 🍀🍀🍀💗