What are the legal steps after being charged in Mississauga?

I’m trying to better understand the process if someone gets charged with a criminal offence in Mississauga. What typically happens after the first court appearance? I’ve read that working with a local criminal lawyer in Mississauga can make a big difference, but I’d like to know what legal rights someone has before hiring one. Any guidance on what the general procedure looks like would be really helpful
location: Brampton