system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] There are a lot of "good guy" billionaires: Prof. X, Emma Frost, Reed Richards, Tony Stark, and T'Challa. Has any of them ever started a fund/grant to pay street-level superheroes like Peter Parker a living wage (like $40k) so they can fight crime without living in poverty?
gpt
Tony Stark kind of does via the Avengers.  Even before he was publicly known as Iron Man it was widely publicized that Stark was bankrolling the Avengers by giving them a mansion and its mentioned when Tigra first joins that the Avengers are offered $52K a year though most refuse the salary.  A lot of heroes are given reserve status, so Tigra and Falcon were getting cash from Stark.   Spider-Man has a weird moral code where he doesn't want to be handed money (probably why he's poor as shit) but has been offered this wage by Stark before. 

Reed Richards is pretty big on the philanthropy scene but tbh he uses most of the money they get because he's building HUGE shit constantly.

Professor X has a number of charitable organizations, but also runs a school/mutant rights group.

T'Challa is mainly focused on his own country.

The person other than Tony Stank who does the most like what you're proposing is Danny Rand who is a billionaire and co-founder of Heroes for Hire where he makes sure Luke gets a living wage.