Hey!
For Dragonborn names, the key is combining draconic-sounding first names with surnames that reflect heritage or accomplishments. First names often have sharp consonants or flowing syllables, for example Arjhan, Balasar, Kava, Rhogar, Sivash. Surnames can signify honor, lineage, or traits such as Firebreath, Stormwarden, Ironfang, Bloodscale, Dragonsbane.
When choosing Dragonborn names, a helpful tip is that Dragonborn from noble families often have grand, formal surnames, while those of adventuring backgrounds might adopt names earned through deeds. A strong combination I like is Rhogar Thunderclaw as it sounds proud, memorable, and very draconic.
