1. Op is a fag
2. Goblins do not have a set culture, stop mistaking your porn games or WoW for D&D
Now, to answer the actual question
Races should be Human, Elf, Halfling, Orc, Planetouched
Halforc was always just a hack to allow orc PCs.
Planetouched covers every special snowflake concept by being some sort of entity with celestial/infernal/elemental/planar parentage. People can fluff whatever vague mutations or special appearance they want within reason or draw from a table
Each race would have sub variants with mild changes
>Human
Half elf, half dwarf, half orc.
There is no half human/half halfling hybrid, said children always count as the race of the mother despite being somewhat short, suggesting a shared ancestry. Humans are the only race that can crossbreed other races
>Elf
High, Wild, Dark
>Dwarf
City, Hill, Deep
>halfling
Light foot, strong heart, riverwise
>Orc
Mountain, Deep, Forest
>Planetouched
Celestial, Infernal, Elemental
This is core, later expansions could add more races like gnomes, Kobolds, and goblins