Best streamer for a returning audio guy

Hello, hope you all can help. My question is what is the most reasonable streamer to try in my system to see if it works for me? 
  A little background is in order . I’m an older gentleman, who was into audio years ago. I’m currently rebuilding my system with newer technology. I have significant older components. Such as Adcom separates, ( not currently using), Yamaha reciever rxa 2000 as a preamp, Rotel amp driving center speaker and rears, crown class d driving main speakers, I have many speaker choices. Currently using Kef 105/2 as mains ( have Martin Logan’s as well) , Martin logan cinema as center, Martin Logan’s a rear surround. All interconnects and speaker wires are morrow audio. 
 I am / was old school with over 1500 vinyl album’s from years of collecting. About 100 cds. One interesting note, this rebirth of my interest in audio came with my wife giving me a turntable for Christmas several years ago. Finally joked it up and after 30 years I was hooked again!!!

  On to my question, it appears that almost everyone is now streaming their music. Ok, I understand the concept ( have Sirius in the car) . What is the best unit to try this out. Can’t break the bank, used is ok, actually preferred. Any outlet advice would be appreciated. 
  I’m working to eventually get to the level of most of you. I have visited my local real hi fi store and have heard the”great” components and eventually I’ll get there. Thanks, and looking forward to your replies. Twodogs112.