Well - It seems there is a very strong bias for going for the Oracle. Just to be clear on the trade off from REXing. Oracle costs 150

(w/o marble) which is a about the same as a settler and a worker. With the copper mine completed we will be at 13 hpt. Assuming a 2-pop whip at the end for 60

it should take approx 7 turns to build in the capital.
In addition, we need to get PH which is 93

before we can start. Which looks to be 3 turns with current tech rate.
So assume we can get in about 10 turns. What do we want to take?
kcd suggest machinery. this requires pottery (124) and MC (702) for 826

. At approx 26 bpt assuming gems hooked up and trade routes, this is about 30 turns or so. Will Oracle be around then? Then if not Mach - what? Currency - this fits with REX. This requires Writing (187) + Math(390) for 587. Or even Constr if we are ready for war. We could even go MC though it doesn't really help with REX or war immediately.
EDIT: And of course we can take a run at the AP with Mono, Writing, Masonry then Oracle into Theo
With regard Fishing, I will be a contrarion and suggest it can wait. What will Bombay build if not a WB - warriors, workers, settlers, granery, barracks, axes. While the land to the west looks intriguing, would we settle it before the north? Probably not. Would it be nice to meet other unhappy AI that will not open borders or trade with us - hmm. Could we stumble across the GL and take it - probably not before dealing with the unhappy AI on out land.
So what next - pick a nice tech that we want from Oracle and beeline the prereq from PH.
And YES to the test maps. I find it invaluable when looking at options - thanks
(And the note on the 94/100 settler - missed that first time through).