Across the Marvel multiverse, regardless of era or history, Tony Stark is typically portrayed as an inventor. Iron Man always finds a way to protect himself and others with his inventions, often (but not always) rising to the occasion as a hero. But there are some worlds where he doesn't just utilize his tech to be a hero.
In two distinct realities across the Marvel multiverse, Tony Stark eventually abandoned his role as a technology-centric hero to become his world's Sorcerer Supreme instead of Doctor Strange -- finding a surprising amount of inner peace in the process of taking on his Illuminati colleague's role.
In one reality, Tony was seemingly fated to take Doctor Strange's role. What If...? #113 by Chris Duffy and Gregg Schigiel introduced a world where Stephen Strange's fateful accident was somewhat caused by Tony Stark. Having met at a party and behind the wheel at the time of the car crash that ruined Strange's hands, it was a guilt-ridden Tony who embarked on a global trek to discover a means of restoring his hands. This resulted in Stark finding and training under the Ancient One, becoming a master of the mystic arts while finding ways to fuse his armors with the supernatural to amplify his abilities. Strange remained by Stark's side as his equivalent of Wong until his own anger led him to briefly betray Stark to Dormammu. Strange ultimately worked alongside Clea to help thwart Dormammu's plans, giving Tony the opening he needed to defeat the lord of the Dark Dimension and return to a likely radically different reality than the core-Marvel Universe.
This entire world is likely defined increasingly by the prevalence of magic, especially if Iron Man, typically a founding Avenger and a leading force for invention in the world, is more of a magic user. It's possible this entire reality operates on a similar standard, especially as Iron Man confronted threats with a greater consideration of the ethereal and supernatural. But even versions of Tony Stark who've spent decades as an inventor could reinvent themselves in a more supernatural light, as revealed in one of the futures glimpsed by heroes like Tempus and Ironheart.
Introduced in All-New X-Men Annual #1 by Brian Michael Bendis and Andrea Sorrentino and visited in stories like Generations, the Iron Man of Earth-TRN591 was also able to eventually save their universe once and for all. After assembling an army of Avengers who finally took down threats like Thanos once and for all, the Earth was rewarded by the other races of the universe gifting their technology and advancements to humanity. In turn, the world became a paradise and Tony found himself embracing the spiritual side after years of resisting it. At 126 years old, he's still the Sorcerer Supreme almost a century after the present day and has dedicated himself to resolving conflict without violence. By preparing magical weapons and tools, he's even able to simply force Morgan Le Fay to retreat rather than cause endanger herself fighting this version of Iron Man.
It's interesting that both versions of Tony Stark who embraced the magical side of the world didn't just find peace, but a new purpose. By effectively replacing Doctor Strange in the Marvel Universe, Stark was able to help impart real genuine change onto the world at large, helping save countless lives and push the future for the better. While the Earth-616 Tony's recent brush with omnipotence has resulted in some seriously dramatic turns for Iron Man, the right level of magical power -- and the restrained understanding that has to come with it to be a proper Sorcerer Supreme -- might be the best way for Iron Man to achieve a truly happy ending.