I don't think there is one, unless you stretch the rhyme a lot.
The end of the word "ornaments" kind of rhymes with parents, but not fully. "ments" and "rents" rhyme, but "na" and "ar" don't, even though they both have an a. Presents is similar... the end rhymes, but not the rest of the word.
Christmas Tree
Christmas
a Christmas word that rhymes with presents is:ornaments
green, serene
blizzard
sleigh
Perky!Someone can be perky onChristmas
There is no perfect rhyme for reindeer that is one word and has to do with Christmas. With two words you could do Christmas cheer.
It is frost.
dare, hintsbarrettesinheritsfenceThere are no perfect rhymes for the word parents, although there are a few words that will rhyme with the singular version of the word 'parent'. These are:errantapparenttransparenthint
CHRISTMAS
the Christmas bell rings