Kami helps you creating hair in a manga/anime style. Kami is found in the N-panel (the right panel in the 3d view port) with the best tools to make hair creation easier. It is also a great start for sculpting. Kami uses custom bevel profiles for curves so you will need Blender 2.91 and up.
Kami is FREE because I made this in the first place to make my own life easier but it might help other Blender heads. If you like the add-on it is nice to buy me a coffee. Also please show me what you made with Kami on Twitter or Instagram (@lumpapps)