There are many books!
About the net, I would not know of any good sites. I hate PC reading; furthermore it is harmful to the sight. (Since I have perfect binocular sight, like the Leopard, Siberian Tiger or Jaguar i do not want to lose it)

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General Adolf Galland´s "First and the last" is a highly recommended read.
Also Werner Baumbach´s "Life and Death of the Luftwaffe" is an excellent one. (Baumbach was a bomber ace).
Both show German points of view of course.
There are many others I´ve read that if not exclusively focused on the rise and descent of the Luftwaffe still contribute in adding more elements that help you creating a picture of the Luftwaffe from mid 1944 and on, far clearer than the one the allied babbling has shoved down out throats.
Other helpful sources have been claims & casualties lists that are available somewhere on the internet. See losses of allied fighters and bombers in the second half of 1944 and they were everything but low.
Also my conversations with veterans of both sides taught me a hell of a lot.
As to the allied point of view, what could i tell you?? That i´ve read several but they do not vary much on their approach to the issue. It would even appear like they did not bother that much in researching further and simply resorted to either copy the opinions of previous authors or simply join the victor´s drunkness.
The more you read and the more you consult, the more you are likely to learn.
I agree with your last comment.
"Only a handful of the new pilots of 1944 survived the war."
Once again, that is plain flat bullshit.
That the casualty rate was high, reaching 50-55% is true. A casualty rate certainly higher than the one the western allies were experiencing. Though telling only a few "survived" is another allied lie.
What of the Kassel raid of Sept 27, 1944? Read the month: SEPTEMBER, the ninth month of the year.
A 38 strong heavy bomber formation (USAAF) got nearly annihilated when the Sturmböck kids torched 34 of them in a matter of few minutes (38 heavies, 34 destroyed: 380 men in the formation, 340 which did not return, most of them killed).
Could a "band of kinds hardly capable of making it airborne" have ever achieved such a masterful level of destruction?
That is just an isolated case of course; still it helps contradicting the allied fairy tale.