It's really simple. Use MyCrypto instead of Myetherwallet. It's made by the same team, It looks the same and it has more improvements so there is no reason why you wouldn't use it.
I haven't seen a single phishing attempt yet targeting Mycrypto, most likely because hackers are not really aware of it as of now as not many people use it. Either way, the domain name is shorter so It's unlikely that you'll fall it.
What is the main difference between mycrypto and myetherwallet? Both are online wallets, so how could you avoid phishing on some other online website?