3Dream's and Mairy's hair may seem unrealistic to you but they have a ton of morphs and can change a lot.   One of my favourites is Akaste hair which has many variations.   Sometimes not all are shown in the product promos.    StudioArtVartanian has many modern hairstyles again with many morphs to get different looks.    A third favourite is ali who has both fantasy and realistic hair.  

Hope you find what you're looking for.