The tech world is riddled with “me too” products. Pinterest for this. Pinterest for that.
I think if the very conception of, and drive behind the idea involves doing “X for Y”; you’re already starting on the wrong foot.
Not that you won’t be successful (the world loves a good sequel because you don’t have to meet new characters). But you’ll be a little less authentic, and less likely to stand out.
So start with something truly original, and then use some of the X for Y and Z, or a cross between F and G, just so that investors understand what the hell you’re talking about.