Hegel has a reputation as the most difficult philosopher in the Western canon, and opening the The phenomenology of spirit without preparation tends to confirm it. The difficulty is real but manageable: read the best commentators first, then the primary texts, then the deeper debates. In that order the fog thins considerably.
The path is built so that every hard primary work arrives with a guide already in your hands. That is the single most useful thing you can do to understand Hegel.
The guides first
Start with the interpreters. Hegel's Idealism by Robert Pippin is a landmark account that reads Hegel as completing Kant's project, and Hegel's Dialectic by Hans-Georg Gadamer offers short, penetrating essays on how his method actually works. Before tackling the big book, read the Routledge Philosophy Guidebook to Hegel and The Phenomenology of Spirit by Robert Stern, the clearest chapter-by-chapter companion available.
The primary texts
Now the sources. The phenomenology of spirit is Hegel's dramatic account of consciousness climbing toward absolute knowing, and with Stern beside you it becomes navigable. Hegel, a re-examination by J. N. Findlay is a sympathetic older commentary that many readers still find the most helpful single overview. For the metaphysical core, The Science of Logic is Hegel's most demanding work, best approached with A commentary on Hegel's logic by John McTaggart, which walks through its notoriously abstract movements.
History, politics, and the debates
Hegel's influence runs through his social and historical thought. Lectures on the Philosophy of World History lays out his controversial view of history as the progress of freedom, and Hegel's Philosophy of Right is the essential text on the state, ethics, and civil society. To place him in his era, German Idealism by Frederick Beiser traces the movement from Kant to Hegel, and The Hegel Myths and Legends, edited by Jon Stewart, clears away the caricatures that cling to his name.
Read in this order and Hegel goes from impenetrable to merely hard, which is a real victory. Follow the full path to work through him step by step.