Hi , i see you are from DR , then you can sell your bitcoin at our  offices , Cash is disponible within 30 minutes to your bank account .
Also you can sell your bitcoin on our website up to $20000 .
https://blockchain.com.do
https://blockchain.com.do/wallet/
https://blockchain.com.do/fees/

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-Punatacana,Boulevard Center #14

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this is our office in santa domingo * SAMBIL*  The receptionist always ready to help
-Sambil Nivel Acuario #AC63


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our offices in Santiago * Plaza bella terra mall*

Call us From 9AM to 6PM
-Punatacana,Boulevard Center #14  Phone 8092854148
-Sambil Nivel Acuario #AC63    Phone 8295474800
-Santiago Plaza Bella Tera Mall #83  Phone  8092410421
Dominican Republique
whatsapp 24/24 hours +1809-871-9073
https://blockchain.com.do

If I were you, I wouldn't do that because that will alarm the exchanges and they will investigate your account. If you get the money from illegal activity, they will report you. I will withdraw for a small amount in every 2-3 days because that will be a safe way to do to stay away from their alarm. If you still forced to do that, make sure you can prove that your money is not from the illegal activity so you can free to withdraw that money. But I don't know which exchange that could allow you to withdraw that amount since I cannot get a big profit from a long time ago.