A new paper has been published on Arxiv discussing models of Galactic emission in the microwaves for Cosmic Microwave Background (CMB) experiments:
The models are available publicly through the PySM3 (Python Sky Model) software package:
Moreover, the CMB-S4 data portal has simulations of the Galactic emission using PySM3 for several past, current and future CMB experiments, see:
For more information, you can also check out my older post about the PEARC paper: