domain BRAZZON.com

I would say $1200

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The adjective this dn sounds like = 'Brazen' and the end-user market you will have will only buy this name for "creative~fun purposes only."
Reason: The potential customers of your end-user will type the phonetically~sounding name vs your creative name, which results in many missed searches. As far as valuation, it depends on whatever your end-user is willing to pay for this creatively~spelled domain name.

There is such a surname, I found it in Google. You can make a brand too

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$500

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