I would suggest first read the sutta-anga portion of SN/SA, and then the Geyya-anga protion of SN/SA, and then the Veyyakarana-anga portion of SN/SA:
See: Choong Mun-keat, The Fundamental Teachings of Early Buddhism: A comparative study based on the Sutra-anga portion of the Pali Samyutta-Nikaya and the Chinese Samyuktagama.
Cf.: