I am trying to create account on bittrex but this exchanger close to new registration.So what is the next trusted and security exchanger?Some exchanger are so boring fro trade because of high fees delay withdraw or deposit scam etc.
The best exchanges, in my opinion, today are Binance, KuCoin, Cex and Krakken. Apart from KuCoin all of these exchanges have shut down their doors for accepting new registrations. They cite it's for backlogs, maintenance whatever, but its actually due to BTC volatility, they fear that the BTC is in a bubble right now and as soon as it starts crashing they would have a huge influx of new users trying to sell their bitcoin and that would be a problem, so they have shut down the registrations.
Still, there are some backways you could get into these exchanges, ergo via bought accounts.