Vincent Bach Nerd Stuff
Alison Balsom on Spotify. You want to sound like this.
Spotify Playlist of great jazz
Brass Chats by Monster Oil – interviews with great brass players
Trumpet Herald – online forum and marketplace for professional and amateur trumpet players. Beware… here be monsters.
https://www.youtube.com/playlist?list=PL_k04vXwGAjKiOMoGfyUALGFjDx4NdYMW Phil O'Neill's channel
Stuff I Have Learned
TLDR: Just get a Bach 3C.