Yeah that always bothered me, too. Just because "hobbit" is vetoed, doesn't make "halfling" work well, especially in the sense that the race would call themselves that. "Hin" works (although I suspect it's lifted from Hîn or Chîn which is Sindarin for "children", so, still a Tolkien fallback.
I have mused before about the offspring of an elf and a human being a halfling, which would make sense name-wise.
To go full Tolkien and inspire from Old English;
ríce Strong Neuter Noun ja-stem
realm 1. power authority reign referring to sovereigns or to others in authority 2. the district in which power is exercised a kingdom realm diocese 3. the people inhabiting a district a nation
frumcynn Strong Neuter Noun
ancestry origin descent lineage race tribe
frumcynn Singular Plural
Nominative (the/that þæt) frumcynn (the/those þá) frumcynn
Accusative (the/that þæt) frumcynn (the/those þá) frumcynn
Genitive (the/that þæs) frumcynnes (the/those þára) frumcynna
Dative (the/that þæm) frumcynne (the/those þæm) frumcynnum
cynd Strong Neuter Noun
origin generation birth race species place by nature nature kind property quality character offspring gender genitalia
cynd Singular Plural
Nominative (the/that þæt) cynd (the/those þá) cynd
Accusative (the/that þæt) cynd (the/those þá) cynd
Genitive (the/that þæs) cyndes (the/those þára) cynda
Dative
Have a play here:
http://www.oldenglishtranslator.co.uk