Plataforma: https://www.overleaf.com/

Fórum para tirar dǘvidas: https://tex.stackexchange.com/

Cursos úteis:

1. LCMAquino - Introdução ao LaTeX: https://www.youtube.com/playlist?list=PLa_2246N48_p9ndUHlO255uvKtSR8mshE

2. LCMAquino - Beamer: https://www.youtube.com/watch?v=l1eH_EhxvWY&list=PLa_2246N48_rk8nzKg6VDykSEU6svwv4r