ALthough funnily enough I'm guessing the answer will be "GS's for bulbs + academy in key places, then run a hybrid if you need it XD". Ahhh civ, what a wonderful game.
Yes
. My typical early build order with any civilization is to grow to happy cap with 2 workers while building 4-6 warriors then have my Capital knock out 3-4 settlers and then build a library (between 1800-1500 BC), run 2 scientist, while slow building (6-8t) 3 workers. The 1st scientist makes an academy (900-800 BCish) then stops running scientist and focus goes on working cottages.
At the same time my Capital had been working 2 scientist I'll have another new city start 2 scientist as well. The timing usually works out that they are started when the Capital is 4-9 turns from creating a GS which means I get my 2nd GS around 500-350 BC which is always used to bulb Philosophy. So 2 crucial early GS + fuel tech at a time when raw beakers are very important.
So my typical empire around 800 BC usually consist of 6 cities that look something like:
1. Capital with an Academy and beginning to work cottages
2. A dedicated unit pump set up in the BCs
3. A dedicated settler/worker pump
4. A random city running 2 scientist plus building research
5. A random city building research
6. A random city building research
This usually puts me in a very strong game position with the most economical and game specific paths available, ranging from REXing till all my land is gone, conquering enough land to REX into, and then deciding on what kind of economy I wanna run.
My GPF is generally beginning to be formed around 800-400 BC (from the 2nd city running 2 scientist in most cases). With marble or an Industrious leader I always get TGL while w/out I usually limit the city to the NE. Whether I run caste and a lot of scientist w/ Pacifism is dependent on the map, I.E., a very strong food site screams max # scientist as humanly possible.
Unless I have the Mids and am in Representation I love to aggressively bulb stuff like paper, education X2, Liberalism, PP, Chemistry. If I am in a FE I also like to bulb SM, Biology, etc. Hell, even if I do have the Mids, depending on the difficulty level and surrounding AI strength it could easily be best to aggressively bulb your way to a superior tech before mass settling.
Edit:
I'd like to hear your thoughts on running a hybrid compared to a CE using GS for academy (plus possible bulbs?)
I don't consider that a "hybrid" but a simple CE with a working GPF.