Don't use too much typeface

This advice I always give to young designers because they tend to use too many fonts in their design, too much excitement I guess. Try to be consistent with your design, I would recommend using one to three different typefaces, but no more. Playing with a Serif as a headline and a Sans serif as a body of text is a good pairing.

Here are some examples of good combinations:

Another good combination: 

And lastly, the combination of GT-Sectra and Futura:

If you want a website to find great combinations of typography, I recommend https://fontpair.co/. 

There are different ways to add fonts to your website: 

• You can either use your own font and use a font generator to generate fonts that are compatible with your browsers. I recommend https://www.fontsquirrel.com/. 
• You can also use Google fonts, which are free to use: https://fonts.google.com/.