Theodora is ok. Sounds quite pretentious, like the influx of Hugos and Ottilies. Historically more upper/ upper middle class name, so like it or not, if you aren't, and then give your child one of those type names, you look a bit image obsessed.
Isadora? Although that's a bit wizardy I guess. Eleanor?
Lainey reminds me of that thing that went viral from the American woman who wanted to choose from Kayleigh-Naveigh, McKartlynn-Leigh etc.