This is a great and useful chart from TedPella (https://www.tedpella.com/) if you want to find out what type of TEM grid works best for your TEM work.
Most of the listed types of substrates are available for ACMAL-STEM users.
Substrates, Support Films for Transmission Electron Microscopy Grids
See the PELCO® TEM Grid Support Film Application Guide.
Erico Freitas