I love all of the Arcadia-related names!
Arkady is great, and he has got many fantastic bearers, like
Arkady Strugatsky and
Arkady Raikin. Out of the literature,
Arkady Kirasnov, the main person in Turgenyev's "Fathers and Sons". Arkasha's fine, although I would personally go with Adya (Adik) and Arkadik,
Arik. It can suite boys with any colour of hair. :)
I can't really compare it to
Alexey, they've completely different vibes to me.
Arkady Veselin
Arkady MariusRowan Arkady Paul ArkadyArkady EugeneArkady MorganArkady Nolan GregoryArkady StevenArkady Cyril/(even
Kirill Arkady, kinda)
Arkady Wolfgang