Pujya Guruji and Pujya Swami Swaroopananda ji have selected 5 verses from Bhagavad Gita for everyone to memorize. These select verses encompass the essence of teaching of the Bhagavad Gītā. See the link below for the verses.
https://drive.google.com/file/d/1HQwntCyhhNJWAWQjbylQf-_QMRomVQdT/view