All the classes in WoW Classic Hardcore can make their way to level 60, but not all picks are equal to one another.
WoW Classic Era Class Rankings: PvP, PvE, Hardcore
WoW Classic zone levels: how strong you need to be for each WoW area
Every Hardcore World of Warcraft Class Ranked Worst to Best
WoW Classic World First Race to Level 60 Leaderboards
Classic Hardcore Leveling Tier List - WoW Classic - Icy Veins
WoW Classic World First Race to Level 60 Leaderboards
Classic WoW Horde Leveling Guide and Recommended Zones - Wowhead
WoW Classic World First Race to Level 60 Leaderboards
WoW Classic Hardcore 1-60 Speedrunning Leaderboards - Warcraft Tavern
Class Comparison Guide: How to Choose A Class - Warcraft Tavern
Best Classes in WotLK Classic