As much as how many scam coins are being released on the daily, your best bet would probably would be in the Announcements (Altcoins)[1] section. Another option would probably be airdrop sites.
[1]
https://bitcointalk.org/index.php?board=159.0Announcements (Altcoins) is definitely the best place
I doubt it. I don't want to deal hundreds of new tokens in altcoin section and the risk of getting scam or lose your money is high.
Though some say CMC is a lie but I still go from it, besides you still need to do your own research before buying new tokens.
CMC is just a little guide.