I agree, your best solution is a new monitor. The most common connection method is HDMI, but the others can work, too. HDMI has the advantage that it also usually carries the audio signals and that's handy IF your new monitor also has speakers to play the audio for you. A hint, though: IF you do that, you may have to tell Windows in your computer to use the audio output system on your graphics card, rather than a mobo built-in system.
For a specific monitor recommendation, I have not bought one for several years, so I'll leave that question to others to advise you.