Star Trek of the Rings?

[Baxten]

Vulcans = Elves

Klingons = Uruk-hai (Orcs)

Romulans = Moriquendi (Elves of Darkness / Dark Elves)

Ferengi = Goblins

Borg = Undead (Nazgûl etc.)

LotR: Undead

The Nazgûl carry daggers known as Morgul-blades meant to break off in the wound, which can turn the afflicted into a wraith.​

 

[at Quark's]

Which race is supposed to be the Hobbits, then?

 

[Hutchy01]

Which race is supposed to be the Hobbits, then?

Tellarites.

 

[Apparition B5]

Andorians would be dwarves, I suppose.

 

[FormerLurker]

Better the Andorians than the Pakleds.

 

[Baxten]

Which race is supposed to be the Hobbits, then?

The Vorta, before being genetically altered.

Memory Alpha: Vorta

Ira Behr commented about the Vorta, "The Vorta [. . .] started out as Hobbit-like cute little creatures who were genetically altered and directed to do these horrible things." (Star Trek: Deep Space Nine Companion, pp. 618 & 619)​