Where should my extra money go each month?

Hello all,

I am an O-1E, currently PCS’ing from tech school to my new base. I am curious about what I should do with my surplus cash each month. Here is my situation:

No consumer debt (no cc, no car loan, etc)

I have about $40k left on starter loans at 2.99%

Closing on a house at a 5.625% that’s well under BAH

Already contributing 5% to TSP for match

I have a mortgage from my previous base at 2.875% but it’s being rented out for much higher than the payment

I have $40k on a family loan at 5%

After minimum payments and bills and everything I will still have an extra ~$1500 each month that is just available to be used wherever is most efficient.

So once I have a sufficient emergency fund saved up where should I put the money? Pay off one of these debts faster? Extra into TSP? Or put it into another investment?

Any help or insights would be greatly appreciated! Thanks in advance!