My experience with starting locatios + goody huts,
you'll never get a free settler right from the start.
Moving the settler away from the goody hut give
us maybe a free settler the next turn.
If starting location No.4 indeed has some ivory nearby
my choice would be clear.
No. 5 has no food bonus,less favourite starting point.
Building the Great Lighthouse + Great Library also will
give Russia an early Golden Age.
Russia is great with a lot of artillery + Cossacks.
A lot of MGLs,because of the blitz ability.
Something else,I always try to do my own research.
Research what is needed at that moment or near
future.Skip useless techs,not even for trading.
So relying on the Great Library until Education and
make a lot of gold would depend on the situation.