This seems to work well on small to medium-sized empires on Noble-Prince levels. Haven't tried it on higher levels or super-large empires yet.
1-2. Build Stonehedge ASAP (Great Prophet)
1-2. Found a religion
3. Build a Shrine with your 1st prophet
4. Have open borders with all your neighbours (spreads your religion)
5. Send many missionairies
6. Adopt Organized religion (production bonus) and State Property (no upkeep)
7. You will have a lot of friends, steady income, and will be able to keep your science close or at 100% to grab technological lead.
Good luck!
1-2. Build Stonehedge ASAP (Great Prophet)
1-2. Found a religion
3. Build a Shrine with your 1st prophet
4. Have open borders with all your neighbours (spreads your religion)
5. Send many missionairies
6. Adopt Organized religion (production bonus) and State Property (no upkeep)
7. You will have a lot of friends, steady income, and will be able to keep your science close or at 100% to grab technological lead.
Good luck!