Listen, mate, I am going to give you fair advice that there is a reason that Google only shows top 10 of 15 websites. Most of the websites on the internet are full of scammers. They just try to take your money by letting you into their fake website. I know that not all the website on the internet are fake, but it is hard to distinguish between a fake website and a real one so jumping into a Very respected website is much better than going on the professional website maybe that is not fake but still it's better to take precautions then treatment. So I will advise you can visit
coinmarketcap which has decent website information about any altcoin or Bitcoin you are searching for.
I agree with jak3. This kind of scammers left a black mark about the believe of crypto currency in people's mind. As crypto currency world is mostly based on internet so it's easy for the hacker to attack any crypto sites to steal crypto currency and also as jak3 said to fool the investors. It's really tough to find a good crypto site for investment.
As long as he can choose the recommended website, he doesn't have to worry about getting scam by other people.
Yes, the internet is full of scammers, and we need to be careful with what we did, and we need to protect our personal information.
And related to what he wants to search, I want to know what he wants to do with the list and maybe he can explain more so we can give what he wants.