I pray 5 times a day, what else should a Muslim man do, to be a good Muslim?

If possible, you should associate with a local Aalim or pious person and
benefit from his company. If that is not possible, you should communicate
with Ulama and request for authentic literature and practise whatever you
read.

and Allah Ta'ala Knows Best

Mufti Ebrahim Desai
FATWA DEPT.