Investing in ICOs is more dangerous, it's like gambling and you have to wait for a long time to have your ROI. You can invest in existing altcoins that already have an active project and team.
You might want to consider Menlo One. They are launching their token sale this mid July and I think this will be the first ICO marketplace ever where investors can discuss, review, and actually invest in ICOs with a few clicks of a button. It's risky since we're in uncharted waters, but worth the risk IMO. It's whitepaper can be viewed here
https://www.menlo.one