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Thanks for the response! Here can you see which exchange circulates the most Dogecoin: https://coinmarketcap.com/currencies/dogecoin/#markets

I would recommend you checking Kucoin exchange
They have very low fees (0.1%) and they give 90% of the collected fees back to the traders.

They don't have Doge, but they have a lot of coins, some relatively new and non-pumped. :)