Connecting multiple fiber connections between buildings on campus

Hi all,

I have to connect about 20 fiber connections between three buildings on our campus. I'll have the fiber terminated in to patch panels, but I need to convert them to ethernet. I'm wondering if you have recommendations on the hardware to do this.

I've used stand-alone transceivers in the past, but only for a couple of connections. Now that I have more connections, I'm thinking transceivers is not the best way to go.