The Vermont Online Library is a great source for reference, news, magazines, audio/video files and more.
Family & Friends: Check out this reference entry on Family Size and this one titled, The Five Types of Toxic Relationship--and how to spot them.
Romantic Relationships: Find articles on healthy (and unhealthy) romantic relationship topics for teens such as this one about relationship abuse in the digital landscape: Texting Trauma, or this overview article on Abusive relationships/Relationship problems.
Use Gale in Context: High School or Gale in Context: Middle School databases to find more resources.
Note: You can filter your searches by content level in both of these databases!
Another great database to use is the Gale Health and Wellness database. Check out this article on Birth Order from the Health and Wellness database.
Britannica School is a great place to start most research projects. You'll find helpful articles offering foundational information for your topic, plus additional resources and recommended web resources connected to your topic (see the "Related" tab in each article).
Login information can be found here.
Family & Friends: Here's a Britannica article on family therapy that looks at some of the reasons, goals, and types of this kind of therapy.
Romantic Relationships: This Britannica article on "sexting" looks at some of the dangers and potential for exploitation.
For relevant newspaper sources, try searching the U.S. Major Dailies database from ProQuest. Log in with your CSD Google account.
Family & Friends: Check out this 2023 article from the Wall Street Journal which looks at the disparity between what people say is their ideal family size and the lower birthrate.
Romantic Relationships: Check out this 2020 article from the Washington Post about one city's efforts to combat dating violence with education on what it is and recognizing the signs.
Possible search terms for any of the above databases (or for web searches):
"family size"
"siblings"
"birth order"
"family size" AND "development"
"toxic relationship"
"teens" AND "dating"
"teens" AND "dating violence"
"abusive relationships" AND youth
"youth" AND "dating"
"toxic relationship"