Three Sorcerous Arts: Three Sorcerous Origins for Firth Edition provides some excellent options for sorcerers in 5E and expands the range of choices for that class. Everything seems well balanced and if you like playing sorcerer, or using them as rivals to the players, give this product a look.
Three Sorcerous Arts: Three Sorcerous Origins for Firth Edition for Firth Edition by Brandes Stoddard and published by Tribality Publishing is just that, three new Sorcerers’ origins (or bloodlines as they would have been called in some other sources) and some supporting magic items. The layout is clear with thematic color photographs for illustrations.
Sea of Stars RPG Design Journal 