Phaeton (used) 1 % leasing dealer recommendation

I am currently playing a used Phaeton in 1% leasing privately. 3.0 TDI. Don’t have to be 36 months (possibly also a little older for 24 months). I find something opaque which dealers offer everything to Phaeton. Can you recommend me good dealers? Come from the Rhine-Main area and I’m also open for dealers in the wider area. What recommendations and tips can you give me, what should I pay attention to?