If you don't trust the top ones, which one you will trust? Actually, we are using top exchanges much better than low or small exchanges. Every exchange will have issues, but at least we can decrease the risks by choosing top exchanges rather than small exchanges. if it is about security, I am sure that both DEX and CEX will have also problems with security. Nothing is much better or safer because they are online and able to be hacked or making mistakes that will result in losing assets.
That is why if we are doing it for a long-term period, never use any exchange to store our assets, use the hardware wallet so that it can help us decreasing the risk and also help us to increase the security system. But if we are sing it for trading daily, I will refer to top exchanges.make