This is sample of Realistic Hair created in blender 2.83. Used only hair particles and tweaked. Lighted and using point lights in blender. This was rendered in EVEE real time render engine. If you need better Quality have to use cycles render engine. Here i have attached evee and cyles samples.
Realtime Medium Length Hairstyle for Male Character.
Textured,lighted and shaded.
polycount: vertices 732,499faces 71,850tris 143,700
_Rendered in evee & cycles _
contains:
Hair.fbxHair.objHair.mtlHair.blendHair.dae