It depend on your strategy, If your want to play short-term investment, you must use technique analysis, If you want to hold for long term invetment, you have to base on their news, their technology, their update, ask yourself Why I hold this coin ? What do I expect from this coin  in the next 3,6,12 months . I will recommend you some coin : BGG ( target to take down Binance in next 6 months, they have many new,interesting strategy to acquire user ) , SWHT ( they will support ERC-20 token very soon ), CMT ( mainnet is comming )