For now, the coolest thing in Steem is the "Community" there so much good vibe about it at the moment, feel free to browse through various communities. I have setup mine that is called Photocircle / https://steemit.com/trending/hive-183855
It's a community focused in Photography & curation.
For an investor like yourself, I would suggest SteemLeo, one of the most elaborate tribe built in Steem-Engine
The other Steemians already made a comment about their suggestion that tally with mine.
By the way SteemPeak is the most advance front-end that you may use to experience the Steem blockchain. It has been innovating it's UI & functionality more than any other Steem-based frontend in this network.
Lastly, let me welcome you to the amazing Steem blockchain! I've been here for more than 2 years and I'm still loving it (maybe more) more than any other crypto out there. Cheers!