I was thinking of building exactly this type of thing here. This is great and I love the simple/minimalistic styled pages.
Things I was also contemplating to implement you can freely steal:
1. Giving a list of potential interesting investments - these could also be behind paywall.
2. Summarize based on sectors to see where there's downturns coming - again maybe paywall this
3. Connect with news-sites or twitter etc.. to see what is happening and what is the sentiment. This is a lot harder as you'll need to either scrape or pay to get that info.
Things I was also contemplating to implement you can freely steal:
1. Giving a list of potential interesting investments - these could also be behind paywall.
2. Summarize based on sectors to see where there's downturns coming - again maybe paywall this
3. Connect with news-sites or twitter etc.. to see what is happening and what is the sentiment. This is a lot harder as you'll need to either scrape or pay to get that info.
Best of luck