I really think all them them are wonderful Tay!!
The “spy vision” Is a good one but that depends on how intriguing the secret is… If you think you can make it more interesting and can keep readers on toes!
The eyes of time and My robot friend are simply amazing because I have never read such story before… (Atleast I haven’t). So again if you think you can make it grow more and more then my robot friend can be a spicy romantic story!
Well, I already know the Cupid one, so yet again… That’s an interesting and beautiful plot which can be a fantasy romantic and maybe you can add glimpse of humour!
They’re just my thoughts, I would just say think for a moment and ask yourself about what story can you write till the end and what you personally love amongst!
sorry for a long note 