Classical composers, symphonies


I thought I would reach out to Audiogon fans of classical music for some help, having seen the numerous posts in the afficionados thread.

I am a big fan of large orchestral works like symphonies, particularly of Rachmaninoff, Tchaikovsky, V Williams, Wagner, Mahler, Brahms, and Bruckner(Romantic).

If you could recommend one or more additional composers to explore that are similar, who would you recommend?

Thanks in advance.
recluse
I just discovered Etienne Mehul. He was around Mendelsohn's time. Very interesting composer. 
Spotify has a great catalog of Early Romantic composers on mostly Naxos Label.
Later Romantic composers:
Anton Rubenstein- Piano Cto #4 and numerous piano pieces that you will probably recognize.
Hector Berlioz- who is a class upon himself.
Earlier Romantic composers:
August Charles DeBeriot and Fredrich Von Flotow
B
Liszt - Tone Poems and A Faust Symphony
Richard Strauss - Tone Poems ( carrying on from Liszt )
Both composers explored where music was going from the 19th century onwards.
I also love the 7 Sibelius Symphonies.
It's been recommended already by jtuba but the Schumann symphonies
are very underplayed  for as good as they are !