Classical nut here, I'll see if I can't answer your questions both concisely and broadly.
First, Deutsche Grammaphone, Telarc, and the like are fantastic recording houses that do a lot of "classical" literature.
However, both have crappy recordings, especially some of the early mono DG stuff. I'd also warn against most of the TELARC - Digital recordings... just something about that
early digital stuff on CD that doesn't do the music justice. Later is better in my opinion.
Tchaikovsky 6 and 4 both work well together, as does most of his ballets.
For specific recordings, see Karajan, Dudamel, or Bernstein - tho Bernstein tends to do weird things sometimes.
Music in this same sphere of orchestrations, like the above posts are:
Wagner - Sigfried's funeral march, Elsas Procession to the Cathedral, Anything by Chicago Symphony and Daniel Barenboim (personal preference) or George Solti, Metropolitan Opera and James Levine
Strauss - Till Eulenspiegle, Don Juan, Death and Transfiguration (now we're getting out of scope), and for a real push into the Opera scene - Salome, which falls inline with Wagner. Again, same conductors and orchestras. But Strauss can reasonably be lissened to from Vienna Phil, Concergebouw, and Philadelphia (Eugen Ormandy of course).
Once you're done with that lot, you might want to break into more modern realm with the FANTASIA 2000 recording of Stravinsky's Firebird by the Chicago Symphony (the whole disc is good actually). And if you like that, there's always The Rite of Spring, perhaps by Michael Tilson Thomas and San Francisco.
Let me know if any of this fits your liking. Alternately, we can go French, or English which sound completely different to all of the above massive German/Austrian/Russian awesomeness.
Sometimes we have to decide what recordings we like ourselves, ESPECIALLY in "classical" music as it is so subjective.