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What is the best one to use in terms of fees, which is the best in speed, and which is the best in safety an which is the best overall?
You should give a try the P2P trading of Binance. Binance P2P is very useful nowadays, especially if you are from a country that got no restrictions on cryptocurrency. Binance P2P got a lot of payment methods, and most of them are instant with almost free from the transaction fees.