I mean publicly, Matt obviously wouldn't find some education that actually belives a blind person would be able to comprehend learning ASL. Though I can absolutely see him learning it and even wanting to given the cases he takes on.
As for an actual different method, another option is tech. In the comics after Maya's initial introduction and eventual time with the New Avengers, Maya communicated with Steven Grant when he was interested in Maya through a text to speech option and vice versa. And compared to just speaking, this is a factor the MCU has some bit of history for as well. Given the actress's mechanical leg being integrated into the story of Maya herself.