Using my favorite A names, the top A names in the US and the top A names on Nameberry
DP: Acre, Amadeo, Arlo, Asher, Axel, Ace, Atticus, Azriel, Aloysius / Ainsley, Anthea, Athena, Amelia, Aaliyah, Allison, Adelaide, Amaryllis, Amalia
DP: Addison, Anchor, Arrow, Aiden, Adam, Ayden, Acacius, Anakin, Alfred / Alba, Antonia, Audrey, Ava, Autumn, Arya, Arabella, Andromeda, Agnes
DC: Adlai, Anders, Arthur, Anthony, August, Amari, Ambrose, Amias, Angus / Alice, Aquinnah, Aurelia, Aria, Aubrey, Adalynn, Abcde, Ayra, April
DC: Aizen, Ansel, Atlas, Andrew, Austin, Antonio, Aurelius, Aarav, Asa / Alpenrose, Aralai, Aurembiaix, Abigail, Anna, Alina, Anastasia, Ariadne, Arwen
DC: Alaric, Apollo, Augustus, Angel, Amir, Alan, Archie, Ari, Alfie / Amerie, Araluen, Ausdis, Avery, Ariana, Alaia, Ada, Amaya, Annie
DC: Aldo, Aramis, Aurelien, Adrian, Adriel, Alex, Alistair, Aryan, Albert / Annavieve, Arietta, Avea, Aurora, Adeline, Amara, Astrid, Althea, Aoife
DC: Alexander, Archer, Avery, Aaron, Ashton, Alejandro, Aziel, Abel, Alec / Annika, Astrea, Azalea, Addison, Ayla, Ashley, Alexandra, Anya, Arden