A good little 
is hard to find. Look at the 10x thread,
Go through the stocks mentioned using fundamental analysis plus some financial analysis like rule of 40 and great positive cash flow. Select the 
you are comfortable with investing $50k. Focus on 1-3 stocks. Remember focus is not saying yes to outstanding stocks, is saying NO to all those outstanding stocks leaving only 1-3.
Basically investing using fundamental analysis.
Select stocks for trading using fundamental analysis. Use TA (may be more correct to say use psychological analysis) for trading at all timeframes.