What I'm doing here is investing in ideas. I wouldn't put a lot of money into these coins without checking to make sure they are active on Github and slack. Even though $100 is kind of a big deal to me, I've cut out many things to be able to put in $100 a week.
My main criteria are 1) has to be on Bittrex 2) can't be just a currency 3) information is easily accessible. When I was trying to decide a coin this morning I had about 20 tabs open that fit the criteria. It's just reading until you find something that sounds really cool and you can imagine it succeeding. And that's just coins ranked 85-200 on coin market cap.