Streamer vs renderer vs music server...help

I have been reading a lot of the forum posts to try understand my best path forward for my digital frontend.  Within the posts on streaming all these terms seem to come up with recommended brands but I am now somewhat confused as to what I need to get the best source sound quality to my DAC.  I don't know if I need a streamer, a dedicated music server, a renderer, a bridge, a roon endpoint, a combination of, or something else.  Looking for some education so I can then zero in on some options.  

I mostly stream tidal so I don't necessarily need to pay extra for CD ripping or file storage capabilities, however I won't discount these options if they come with the component that has great sound quality. Basically, how best do I get the Tidal stream to my DAC, preferably using Roon as the controller (open to other options if SQ is improved with different components).

I have a Leben CS600x, Devore 0/96s, and currently an Auralic Vega G2 but I am looking to change to the Holo Audio May KTE or a TotalDac.  The Vega has the built in streamer and lighting controller but I also use the Vega as a Roon endpoint with the Roon controller (I think that's how it works?)  The Roon core is currently on my iMAC.

Sorry for starting another post!  I tried to piece it together from other posts but there were too many types of components mentioned in the chain before the DAC that I didn't fully understand.