Here:

https://bitcointalk.org/index.php?topic=2575310.0 - Thoughts on Cardano (ADA) and Stellar Lumens (XLM)

https://bitcointalk.org/index.php?topic=2991522.0 - EOS, Nano, Cardano or Stellar?

https://bitcointalk.org/index.php?topic=2667917.0 - Bitcoin vs Ripple+Cardano+Stellar=Something is being made behind the scene

https://bitcointalk.org/index.php?topic=2254058.0 - what's your idea on cardano(ADA)?

https://bitcointalk.org/index.php?topic=2847174.0 - Cardano (ADA) Coin - would you invest?

I think you can find a lot of answers from the above mentioned thread and even more. Goodluck to you. Just an advise that you can used the search function. If its not working then the friendly Google could be the next tool you can used.