Could there be anything better than modafinil?

[RoroSpace]

I am a person with basic knowledge in many chemical, queraa whether it is possible something better than modafinil, I do not like to use this example, but could be something beside NZT there? I know it's a ficiticia drug, I am referring to some effects, such as clarity, curve, memory, attention, concentration, attention, learning, things like that, there could be something close to it?

My English is very bad, forgive me

 

[The.Ghost]

Armodafinil comes to mind. It's the best of modafinil's isomers, like dextroamphetamine being racemic amphetamine's best isomer.