Really need a fiber connection but.....

Bringing a fiber connection to my house is a royal pain in the butt not to mention the cost.  I'm not even sure if I have fiber to the Verizon controller in my garage and I would rather not spend countless hours on the phone dealing with the black hole of that company's bureaucracy.  I've been streaming qobuz hi-resolution files with so-so results (the quality is somewhere between MP3 and CD).  I want to upgrade my Sonore ultrarendu to the opticalrendu but for that I need a fiber connection.  Would it serve any purpose to buy a ethernet to fiber converter?  They can be purchased for cheap $ on Amazon.  I noticed that one audiophile is using it for his Auralic.  I'm convinced optical is the way to go but I'm trying to do it with the least amount of headache. 

The DAC is an MBL corona if that makes any difference.