Catchwords are preset typographic alternates like “the”, “and”, etc. Here are some good examples with good fonts with this kind of alternates:

Brothers by Emigre
http://new.myfonts.com/fonts/emigre/brothers/

Council by Emigre
http://new.myfonts.com/fonts/emigre/council/

Bello by Underware
http://new.myfonts.com/fonts/underware/bello/

Hiatus by Umbrella Type
http://marketplace.veer.com/fonts/UMT0001084#

Phaeton by Umbrella Type
http://marketplace.veer.com/fonts/umt0000447

Cowboyslang by HVD Fonts
http://new.myfonts.com/fonts/hvdfonts/cowboyslang/ornaments/

Metroscript by Alphabet Soup
http://new.myfonts.com/fonts/alphabetsoup/metroscript/

Verna by Fenotype
http://new.myfonts.com/fonts/fenotype/verna/

XXII Mescaline by Doubletwo Studios 
http://new.myfonts.com/fonts/doubletwo/xxii-mescaline/ 

Rita by Sudtipos
http://new.myfonts.com/fonts/sudtipos/rita/

Lady Rene by Sudtipos
http://new.myfonts.com/fonts/sudtipos/lady-rene/

Royal Oak Decor
http://new.myfonts.com/fonts/typonauten/royal-oak-decor/ 

Catch Words by Jeff Levine
http://new.myfonts.com/fonts/jnlevine/catch-words/

FF Catch Words by FontFont
http://new.myfonts.com/fonts/fontfont/catch-words/