Need to clear up confusion about raising accounts and proxies

Hello everyone, I want to build a system to manage gmail and facebook accounts to support small-scale seeding work, managing only about 50-100 accounts. But currently my knowledge of account and proxy management is not too much, almost blind. Please help me understand.

  • As I know, there are several types of proxies: ipv6 vs ipv4 proxy, static vs rotating proxy, residential proxy. Combined, there are so many types that I don’t know which one to use. My goal is to choose the province or city of the ip because I need to use it to evaluate google map more effectively.
  • Currently, which anti-detect browser tool is the most stable and economical?