“Small Group Discussion Topics for Korean Students” (PNU press) is good ISBN 978-89-7316-4523
Also “Global Topics” level 3 ASIN: B085Q1XRK6
https://www.amazon.com/GLOBAL-TOPICS-Level-Language-Discussion-ebook/dp/B085Q1XRK6/ref=mp_s_a_1_2?crid=GMC8R7OISU5W&keywords=“global+topics”&qid=1656773736&sprefix=global+topics+%2Caps%2C674&sr=8-2