Iron Man has wielded the Infinity Gauntlet in the comics. But it's not a consistent occurrence throughout all comic iterations and often depends on the plot and creative direction of the particular comic run.
One common theme is power and responsibility. Just like in the main Marvel stories, when Iron Man has the Infinity Gauntlet, he has to decide how to use such incredible power. Another theme is redemption. Sometimes Iron Man uses the gauntlet to fix his past mistakes.
Iron Man Lego was a series of Lego bricks that included models and dolls related to Iron Man. We can see that there are a variety of Iron Man Lego products to choose from, such as the LEGO Iron Man Figure (76206) and the LEGO Iron Man Anti-Hulk Armor (76210). These blocks could be used to piece together the image and armor of Iron Man, allowing Iron Man fans to create their own Iron Man world. In addition, there were other brands of Iron Man models that were compatible with Lego bricks to choose from. In general, Iron Man Lego blocks were a toy suitable for Iron Man fans, allowing them to experience the charm of Iron Man during the assembly.
Sure. One great Iron Man Infinity Gauntlet fanfiction is 'The Gauntlet's New Master' which shows Iron Man's unique take on using the Infinity Gauntlet. He tries to use it for the betterment of Earth in a very different way compared to Thanos.
Spider-Man was not one of the characters who died in the Infinity Gauntlet comics. The story had its own set of casualties, but he wasn't among them. The plot was complex and full of surprises, but Spider-Man made it through.
In some fanfiction, Spider - Man might obtain the Infinity Gauntlet through a stroke of luck. Maybe it just falls into his hands during a battle in an alien - invaded New York. Another way could be that he is chosen by some powerful cosmic entity to be the wielder of the gauntlet for a specific purpose, like restoring balance to the universe.