Priority use for purchasing my first linear power supply - Streamer, DAC or Amp?

Move it around and see what sounds best. Check this out instead of LPS, it works great on my streamer:

https://ifi-audio.com/products/ipowerx/

Thank you

You could possibly buy a dual output ps or even 3 outputs. Imagine the possibilities and price! 
 

I have an uptone audio JS-2 powering my server and a Etheregen. An Afterdark powering a master clock for Etheregen. These make a nice addition and when I've taken them out and use the stock power supplies what a difference can be heard. 

zen - makes a real difference in my experience, and it is the front of the chain

as others have said, there are dual output models... keces of taiwan makes very good quality very cost effective ones - models being the p3 and dc-116 its predecessor... with user adjustable dc voltage too