Raine or Rain?

[name_m]Hi[/name_m],

Our baby girl is due to arrive in 6 weeks. We have decided on her name, [name_f]Claudia[/name_f], I’m just after some opinions on spelling for her middle name,
[name_f]Raine[/name_f] or [name_u]Rain[/name_u]?

She is our rainbow baby so has a special meaning for us x

I like [name_u]Rain[/name_u] the best. [name_f]Claudia[/name_f] [name_u]Rain[/name_u] is beautiful btw!