I agree with Iranon, although I would probably place PHI on top and drop ORG altogether.
ORG; even with the highest configuration of civics it never comes close to providing the same benefit as FIN. There's something to be said of cheaper courthouses, but I wouldn't give up a good trait for it.
As for synergy:
PHI/CRE, fast libs for an early GS. Fast uni's for OU
PHI/SPI, switch between Caste/Paci, Slavery/OR
IMP/FIN, tons of early cottages (depends on the map, obviously)
EXP/CHA, early happiness, early health, faster growth
CHA/PHI, early happiness, excellent for using PHI
FIN/SPI, switching between production and cottage civics
IMP/EXP, you save so many

in the early game