Looking for a big secure safe insulated dog house

Shelley, most flea markets are 'hit or miss. This flea market has indoor vendors (that are there every week) and outdoor vendors (that may switch up). All that to say: I've seen few dog houses there. More kennels than houses. None were from indoor vendors.

Have not seen them there ever online is your best shot or try Facebook market

Hello Shelley no one sells them. I say look online is probably your best choice