At the moment i find bitcointalk a good source to find good bitcoin related investment projects. Be it ICO's or regular altcoins, there is enough to choose between.
So much I have to buy new bitcoins every month to keep up with these projects.
Investing in ICO's are going to be a good way to invest your bitcoins and not just with those ICO's because if you think and researched that the developers of that alt coin for sure you are going to invest more on that project if you think that the coin is going to pump in the future or else you are going to stick with trading.