Where to exchange bitcoins?

I have had 2 bitcoins for a couple of years now, and now I would like to exchange them. Tell me where you can exchange bitcoins so as not to lose a lot of money on the commissions of exchangers? Give links to normal exchangers.

And if it's not a secret, how much did you buy bitcoins for a couple of years ago? Did you manage to buy them while they were still relatively cheap? It would be interesting to know. As for the exchanger for cryptocurrencies, I can recommend you this site https://letsexchange.io/exchange/btc-to-eth . Personally, when I need to exchange cryptocurrency, I only use this site. All transactions are anonymous, and all transactions take place in just 5-10 minutes.