Hello, I am fairly new to the game and this is my city, I just want to get some tips and suggestions, my city production is 11fp and I have a level 7 arc, level 4 zeus, level 5 oracle and level 1 lighthouse.
Good looking city.
Reducing the number of residential buildings will help free up space. That can be done by obtaining event buildings that give population as a side benefit, or by building the Tower of Babel. If you build the tower, don't level it too far, since you will outgrow it's usefulness in time (same goes for Oracle and likely Lighthouse of Alexandria).
Getting unattached troops from GE rewards might allow you to reduce the number of Archery Ranges you have, to free up space for other things. Eventually you'll want to switch over to Ballista as your combat boost grows higher if you stay in Iron Age.
Get more expansions by purchasing with diamonds (get them free from GE, mostly level 4), medals (get them from Arc boosts when donating to other's great buildings, especially Arcs), and on the campaign map (be careful here not to lose recurring quests).
Tower of Babel, Castel del Monte, Cathedral of Aachen, Chateau Frontenac, and Lighthouse of Alexandria are the next great buildings I think you should consider. The order would depend on what you want from the game.
Consider starting to do recurring quests if you can. They help a lot, and Iron Age is a great era for them. This is where a Chateau and HC come in handy. It is easy to lose recurring quests if you aren't careful by advancing too far on the campaign map. Here is a good primer on recurring quests:
https://forum.us.forgeofempires.com/index.php?threads/cosmic-ravens-hqs-condensed.22835/
Whatever you do, this game takes time. #1 piece of advice I can give is to not rush through the eras too quickly.