Alright, so you're looking for that classic epic feel, the gods meddling and a long journey home. Honestly, 'The Iliad' is the obvious companion piece, but it's more about the war rage than the wandering. For the journey aspect, I keep thinking of 'The Aeneid'. It's like Virgil's answer to Homer—Aeneas fleeing Troy, destined to found Rome, dealing with divine drama the whole way. Has that same scale.
For something newer but totally soaked in myth, Madeline Miller's 'Circe' is phenomenal. It's from the witch's perspective, so you get all the Olympian politics and hero visits, but through a very different, deeply personal lens. The heroism there is quieter, about survival and self-definition.
Oh, and don't sleep on 'The Song of Achilles', also by Miller. It re-frames the Trojan War through Patroclus's eyes. The mythology is the backdrop, but the core is this intense, tragic relationship. Hits you right in the chest.