If you like using Courier font in your terminal window then you should downloading and using this font:
But there’s no reason Courier has to look terrible. We set out to make the best damn Courier ever.
We call it Courier Prime.
And it’s using a Open SIL license. Anyone can download and use it.
I use Consolata when I can and Inconsolata as alternative because the characters are far more readable than Courier – but that’s just my personal choice.