I like Lee-ah and Lay-ah. I think of the two I prefer
Leah (Lee-ah) because it is easier to say and spell so she would encounter less confusion later in life. My name is
Leigh Ann (
Lee Ann) and has been a pain all my life because I have to pronounce it and spell it for everyone. I guess that makes me extra sensitive to less common names.
However, I think
Laia has a very pretty sound to it.
Good luck!