Okay, so three out of these six selections have to feature humor, right?
I'm going with the Library's genre classifications, so here are my 'humorous' choices:
"Accepting an Apology" by Grace Brackenridge [F/b, very short]An unfairly disciplined young boy discovers that failure to graciously accept his spanker's apology is considered a punishable offense.
"The Plan" by Goodgulf [F/f F/ff, fairly short]A teenage girl gains one-year-later revenge for an embarrassing prank by her big sister's friend, via cleverly manipulating her into being soundly spanked by the sisters' mother. Fortunately for her, both mothers accept the younger girl's right to gain retribution, as grudgingly does the punished friend.
"Gift of Grace" by Neil [F/M, fairly short]A meddling mother believes that she knows how to improve the sex life of her daughter and son-in-law, in order for them to produce grandchildren for her. She is proven to be quite mistaken in her main assumption, yet her plan still achieves its objective due to her daughter's assertiveness.
Here are my other selections:
"The Prodigy" by Patron [Fg/F F/F, four parts, long]A preteen girl gets advice from a female teenage mentor on how to dominate her somewhat immature mother by spanking her on a regular basis, something she gradually manages to achieve which benefits both of them.
"Ballbreaker" by John Benson [F/M, short]When a young man displays a psychological need to be dominated, especially spanked for his sexual desires, societal agents separately 'train' both his girlfriend and himself in how that situation can be optimally resolved to improve their relationship.
"A School Inspector Calls" by Dr. Keate [M/F, fairly long]I'm generally not a maledom spanking fan, yet I find this account of a stubborn school headmistress being given her sharp comeuppance via a thorough caning to be compelling, even though it's an unjust punishment carried out by the priggish representative of a brutal authoritarian regime.
Of course, I have plenty more...

--C.K.