In my original home brew, Amberos, the goblinoids and elves came from the dreamlands. Elves were daydreams, the goblinoids were borne of dark, unfulfilled desires and nightmares - but they had bodies as beautiful as the elves.
The goblinoids had powerful magic like the elves, but they used it for their own benefit. They were approached by the goddess Ziga,(an orphan half-elf who had ascended when her mortal adopted parents achieved godhood). Ziga felt she had been mistreated by elves when she was mortal, and ignored by them when she became immortal, and plotted with the goblinoids against the elves.
However, in the end the goblinoids betrayed her to increase their own power, and the entire plot fell apart. Ziga cursed the goblinoids so their twisted hearts would manifest in the flesh, and stole away their magic for breaking their pact with her, though the goblinoids would eventually find an alternate path to once again use magic. Ziga is likewise the great matron of the drow on Amberos as well.
You can play as an orc if you want to, trying to escape Ziga’s curse or ignoring it reveling in your selfishness, but they’re mostly there for PCs to kill. Non-evil orcs are a singular rarity at best.