Few suggestions:
1. Crypto news aggregator
Find out the most recent trends and news about cryptocurrency, crypto exchanges, crypto investments, blockchain projects etc.
You might want to add filters to sort it out (ability to read the news, based on the chosen source/s and dates).
3. Exchanges reviews
Read about cryptocurrency exchanges you want to work with, their main features and advantages. Choose appropriate exchange.
I read few of the reviews and honestly, I was hoping to see a much more in-depth reviews (pros and cons, based on the actual experience of users).