Heres a simple trick to get warmer sunrise/sunset. As I use Canon so this is for canon DSLR’s
1. Set your camera white balance to daylight
2. Choose WB SHIFT/BKT in menu. Press Set button to get the white balance/bracketing screen
3. Using the joystick/multi controller move the little square two clicks towards A ie. Amber. This will warm up the white balance
4. Press Set to lock the settings.
WHEN YOU ARE DONE SHOOTING DONT FORGET TO TURN THIS SETTING OFF OR YOU WILL RUIN UP YOUR NEXT SHOTS