Are you asking for a trading platform(exchange)? The way I am reading your statement is that you want to see where you can buy all coins.
Cryptopia has hundreds of coins if that is what you are looking for.
What do you mean by bases? Like what type of coin it is based on? Like how litecoin is based on bitcoin code or something?
No, not trading platforms..
There are hundreds of coins, or even altcoins..
What I know so far is that all of them are based on a platform.
Bitcoin, Waves, Ethereum and others.
So if you want to create your own altcoin - you need to use a base for that, a platform.
So I am looking for a list of all the platforms so see what each one of them offer.
So far I've seen 20+, I'm sure there are more hence looking for a list.
Maybe I just call it wrong? and it's not a base or a platform but cryptoplatform something? dunno just guessing here
But I hope I make any sense here.