Depends on what you mean by classic, really. Really don't want to be critical, but you did ask...
Obviously, anyone can spell any name in any way they like, but Mabel, Thomasina, Gaia, Raine are the more usual spellings (though many would say that Raine is not a 'classic' name).
This may not matter, but:
Maisina is a range of mountains in Papua New Guinea. It’s not listed as a name on reliable websites.
Mailli = Celtic (Gaelic, Cornish) for 'Molly'; in the usual spelling, there are two 'L's and no 'e' at the end
Quinn is normally a boy's name in the UK, though it is occasionally used for girls in the USA. One meaning is ‘son of a chief’. It’s a fairly widespread Irish surname, but not a classic first name, at least so far as many people would say.
Charla is a girl's name: www.behindthename.com/name/charla
All the following are very classic, but are short forms.
Hettie = short for Henrietta, Lottie = short for Charlotte, Winnie = short for Winifred
Archie is short for Archibald; Eddie is short for Edward/Edmund/Edwin etc etc