I dunno, its hard to tell because I don't know what you would like. I'll give you some popular matches, and you can either try to find them online or see if you can watch clips.
Flair vs. Funk I quit,
Flair vs. Steamboat any 89 match,
Hogan vs Warrior Wrestlemania 6,
Austin vs. Hart Wrestlemania 13,
Undertaker vs. Michaels Wrestlemania 25,
Bret Hart vs. Owen Hart Wrestlemania X,
Shawn Michaels vs. Razor Ramon Wrestlemania X,
Flair vs. Vader Starrcade 93 (My fav ever),
Macho Man vs. Ultimate Warrior Wrestlemania 7,
Macho Man vs. Ricky Steamboat Wrestlemania 3,
Undertaker vs. Shawn Michaels Badd Blood 97
Undertaker vs. Mankind King of the Ring 98