Reeva - I like it (so it's not a love or hate for me). I don't think buses. I do think a bit of Oskar Pistorius but that won't be an association that lasts.
Serena - I quite like it but wouldn't be a name I'd choose.
Sienna - it's apparently very common here but I've never met one and I teach. It's pretty.
isabella - I don't know if the popularity matters here. It will always be a beautiful, elegant name.
Arlia - Never heard this before. It's pretty.
Blair- I like it but can't get past the Gossip Girl connection. Very different to your other choices too.
How about:
Aria, Aurelia, Antonia, Cassandra, Calliope, Cassia, Calista, Chiara, Camilla, Carmen, Danica, Diana, Eliana, Elisa, Elisaveta, Erica, Eliora, Fabia, Fenella, Felicia, Francesca, Gloria, Gabriella, Giovanna, Helena, Isadora, Imelda, Julia, Katerina, Karina, Leona, Larissa, Lavinia, Leandra, Liora, Livia, Mariana, Nia, Natalia, Nadia, Octavia, Paloma, Pandora, Rosina, Rosalia, Serafina, Sofia, Sabrina, Sierra, Tatiana, Talitha, Vittoria, Viola, Vanessa, Xenia, Yolanda