What is a good mortgage company for me and how much can I spend on a house?

I am 18 and a first time home buyer I have a credit score of 687 and I never rented but I have always payed my phone bill and my rent a center bill on time I have a job and my current
Income is $1945.00 a month

Read more: What is a good mortgage company for me and how much can I spend on a house?