I'm not a fan of playing around with stocks. Too much gambling behavior rather than investing. That said, I buy one stock for one main reason. BRK/B. Why? They pay no dividends. The company owns a bunch of companies outright and high percentages of another bunch of companies and then a scattering of yet more company stock. Some people consider it almost a total US market fund within a single stock. I'm in it because I do feel its that but more importantly, I don't want the taxable dividends spilled into my account. With BRK, if I don't sell, I have zero tax liability. For maybe a year, I've put all new taxable money into BRK/B.
Moving forward, I do have positions in taxable of VTI and SCHB, which will need to be spent. I'm not far from retirement, so am not overly worried about them. When they do spill dividends, they are either sent to my checking account or used to buy more BRK/B.