Are there any crypto exchange making services?
Maybe you can break this down the more for clarification, i don't seem to understand what you're asking here.
Is it possible to create a CEX exchange (without KYC and regulation) or DEX exchange with the help of site making services that would be understandable for a beginner without knowledge of coding
There are centralized exchanges and there are decentralized exchanges, decentralized exchanges don't ask for kyc, while under a centralized exchange, we have both the kyc and none kyc centralized exchanges as well.
But if you think you wanted to learn as a beginner, then don't even go close to starting with an exchange, instead learn to develop some of these skills that are required for the use of an exchange and first understand how they works and are being applicable.