I have two external Dell monitors, one M1 air mac bought in 2021, so only one works. I bought a dual HDMI plug but it's not supported. What cheap device (displ

I have two external Dell monitors, one M1 air mac bought in 2021, so only one works. I bought a dual HDMI plug but it's not supported. What cheap device (displaylink hub port?) would you suggest people like me to buy to connect the second monitor? At