Chicken Soup for the Soul: Humorous Stories: Teenagers
They publish nonfiction stories and poems, of up to 1,200 words, on specific themes. They have extensive guidelines on each theme, excerpts of which are below.

— Teenagers: This book is about teenage years (ages 13-19).  “Scientific research has proven that being thankful improves your health, your cognitive functions, and your relationships. Young people who see the silver linings, count their blessings, and maintain a positive perspective weather the ups and downs of life much better than those who bemoan their fates and focus on the negative.
We’re looking for your uplifting true stories and poems about how you used the power of gratitude to change your own life while you navigated the teenage years. You’ll help readers through your examples and your personal tips on how to use thankfulness and appreciation.” They have several suggested topics, including: Learning that less can be more; Realizing that possessions are not as important as other things, like relationships and family; Doing for others – volunteer work, random acts of kindness; Appreciating your family members. The deadline is 20 December 2021.
They also have other themes listed, with deadlines in 2022: Cats; Counting your blessings; Crazy, eccentric, wacky, lovable, fun families; Dogs; Miracles; Thanksgiving, Christmas, Hanukkah and New Year’s; and Messages from heaven.

Length: Up to 1,200 words
Pay: $200.

Details here (themes), here (guidelines), and here (submission portal).