I think you should analyse your needs and preferences and risk appetite first so that you can find the robo-investor that is the best fit for your unique criteria.
for me, i chose the Syfe REIT+ portfolio because $50 was all I could afford to put aside for investment at that time. so I did.
You can read more about it on other community channels i.e seedly
Look at the underlying funds and see which one resonate with you the most.