Where can I find an eclair cake? (Bakery/Pastry Shop reccs welcome!)

Hey there, my wife's birthday is coming up in about a month and her favorite cake is a chocolate eclair cake. I tried baking one last year and it was a disaster.

I'd much rather just pay someone to bake her the cake she wants, but I've never seen Publix or Walmart have one for sale.

Do you know where I can find a place that sells an eclair cake? If you're not 100% sure, that's fine-- what bakeries/pastry shops do you know of that I can check at? Thanks!