What is a good allocation of money into Robo-advisors?

There is nothing wrong to have 2 robo advisor, but you have to see if they are buying into same ETF. Although they have different algorithm when come to rebalancing, I don't expect much different in terms of performance if the underlying ETF are about the same.

I have Stashaway and Syfe but thats is for different purpose, one for equities and one for REITS.