Any way to listen to wav or high bit files with anything approaching audiophile sound?


Forgive the question, but this is my first time posting on Audiogon in a few years and I'm not up on some of the latest technology.  I'm doing a project where I'm going through as much music as possible for a blog I'll be creating where I find my 1,000 favorite albums of all time and ranking them.  I'm most of the way through my thousands of CD's (don't do LP's), and I have decent audiophile equipment, though nothing top of the line.

For other music, I'm going to have to listen to it online or purchase a digital version of the music, as there's no way I can afford to buy thousands more cd's, or they're out of print on cd's (as much of the music I love that I don't have is somewhat obscure), or they never existed on cd.  Some albums I know I won't be able to find. 

First off, is there a way to legally find more obscure albums online other than illegal downloading? 

Secondly, is there ANY way to listen to said music in anything remotely approaching audiophile sound quality?  Does it have to be a certain file type or bit rate?  I've always stayed away from digital files in the past, but now I kind of need them.  Is there some kind of audiophile digital storage device where I can download music to and play it on my stereo system?  I'm pretty ignorant about these things, so again forgive me, and any help would be appreciated.  I don't expect the music to sound quite as high fidelity as using cd's on audiophile equipment, but what are my options to get as close as possible?
soulgoober
Just get a topping bc3 bluetooth module, a v90 dac by musical fidelity, and a samsung galaxy tab a 10.5 and be happy. Streaming on the cheap and it all works flawlessly. No need to buy expensive streamers etc..the tablet has Qualcomm’s aptx and Sony’s ldac. Get amazon hd music free for 90 days to try out. You would be amazed how nice this bluetooth topping bc3 sounds. Yea, it can be bettered, but at what cost? I’m a casual streamer, so this set up works great for my purposes. The only accessory I  needed to buy to make it all work was a toslink cable, mini to full toslink. Unbelievably simple. The only issue is that samsung pulled aptx hd from the bluetooth codec menu, however Ldac is still usable. Even at the lower resolution codec settings, it still sounds wonderful to me.
clearthinker - this project is doomed to failure?  wow, thanks for the asshole statement!  I'd defend myself based on what you think i'm trying to do, but since you're being an asshole, no thanks.
On the bright side, since the project requirement is, “I'm going through as much music as possible,” it’s literally impossible to fail. 
Hello Soulgoober.  Someone has prejudiced you against digital sound. How sad. Do you have access to a computer? You will need one. "Youtube" has recordings of an enormous number of albums recorded by fans on their own equipment. Most of them are between decent and quite nice. Just type in the name of the album you'd like to find and you'll get a list of the available recordings. You could go to Amazon and see if the album is available used (it'll cost you $5 or so with shipping, maybe more). Do you have decent headphones? A very small DAC that came to the market too late (Dragonfly got all the business) from Bitstream, the BTS 300, is available from Parts Connexion in Canada for only $10! You read it right. Is it super duper, no. Is it C+ to B, yes. If you want an obviously better one, look for a used Drangonfly Black, Meridian Explorer, or Music Streamer 2. If you can spend $400 or so new, the SMSL400 performs very nicely, probably best buy for the money spent. Enjoy your project.
@ OP
Many ways. Get
- good Internet service (> 50 Mbps)
- good modem (eg Arris Surfboard)
- good WiFi (Google or Linksys or similar mesh system)
- any components with switching power supplies plugged in a conditioner with HF/digital filters
- minimize galvanic connection (ie, use WiFi, TosLink over Ethernet/USB cable)

I run Tidal via Roon, using a MacBook to run the Roon core. Tidal hi Rez via Roon/WiFi to an OPPO 205 (again via WiFi) is on par with the same recording on SACD - same OPPO. Not noisy, superb spatial information and micro detail. Many ‘blind’ listening sessions with audiophile friends. The evidence is clear - superb set up. 

Good luck!