ngenius
Adventurer
How I see the three popular 5e non-WoTC products.
Level Up Advanced 5e - D&D 5e Enhanced
(with improvements made over the base game like AD&D2e over AD&D sort of, hence several changes from 5e this, its own SRD in place of SRD5.1).
Fateforge 5e - D&D 5e Beautified
(the original 5e rules just presented more artistically with a few minor embellishments, hence, most terminology is same as SRD5 .1)
Core Fantasy 5e (Tales of the Valiant) - D&D 5e Revised
(mostly terms changed to move away from WoTC OGL but overall engine remains SRD5.1 with several revisions like Spell Levels replaced so may need a Core Fantasy SRD like Level Up has).
Level Up Advanced 5e - D&D 5e Enhanced
(with improvements made over the base game like AD&D2e over AD&D sort of, hence several changes from 5e this, its own SRD in place of SRD5.1).
Fateforge 5e - D&D 5e Beautified
(the original 5e rules just presented more artistically with a few minor embellishments, hence, most terminology is same as SRD5 .1)
Core Fantasy 5e (Tales of the Valiant) - D&D 5e Revised
(mostly terms changed to move away from WoTC OGL but overall engine remains SRD5.1 with several revisions like Spell Levels replaced so may need a Core Fantasy SRD like Level Up has).