Kraken is one of the largest and most well-known exchanges in the cryptographic market founded in 2011, it is a really veteran exchange, if you enter Kraken you must pass a KYC, the exchange has a really high security system, with the possibility of using a two-step authenticator , masterkey, which is an extra security system in case you lose your 2FA, SSL encryption... it has staking in many cryptocurrencies and in some fiat currencies such as euro and dollar, it is very easy to buy crypto there from about $10, it also has fees very competitive both for purchase and withdrawal, I have been using this exchange for more than 2 years and I do not regret it, do you use Kraken?