Asha is such a beautiful name, and so is
Rafaela!
Asha Rafaela would be an amazing combo.
I think you've already gotten a lot of suggestions with 'ash' or 'asha,' so I'll throw a few other options out there.
Asha means 'wish, desire, hope,' so a name with the same Sanskrit root could be neat:
EshaAbhilashaAkankshaKamakshiTrishna
You could also try a name from a different origin with the same meaning:
Nahia (could be spelled
Naia -- I think this goes so well with
Rafaela)
MaramArezooAvilaDesiDilettaEmelAmalKaminiKantaLalitaMireille or
Mireia MunyaVenus