Short map: in Jesus's Jerusalem you're mostly looking at Pharisees (oral-law interpreters), Sadducees (Temple aristocracy and written law), and the temple-aligned Herodians, with Zealots on the political edge and Essenes mostly outside the city. The Sanhedrin home-field was Pharisee-influenced; Sadducees controlled temple practice. So debates in Jerusalem centered on law, ritual purity, and authority, not a single unified 'sect'.