Its super important to have beautiful web site in the crypto currency space. The difference between average web site and great web site can make huge difference and can literally worth billions.
Here are my top 5 picks:
Stellar https://www.stellar.org
IOTA https://iota.org
Cardano https://www.cardanohub.org/en/home/
Ark https://ark.io
ZCoin https://zcoin.io
What is your preferred cryptocurrency web site?