An overview of the scholarship programs in the state of Bavaria can be found here: https://www.km.bayern.de/eltern/lernen/foerderung/foerderprogramme-und-stipendien.html
Pupils and trainees from low-income families can, under certain conditions, receive benefits according to the Federal Training Assistance Act (BAföG): https://www.stmwk.bayern.de/studenten/foerderung-und-stipendien/bafoeg-und-bayafoeg.html