-
At 18 immediately get a Discover Student card.
Also at 18 sign up for a bank account at Chase.
Wait 6 months and try to sign up for a Chase card.
If declined, sign up for a Citi Preferred or Amex Green card.
If you want to add in a Business card I would try with Chase but you will need to open a Business Checking account.
After another 3 months sign up for Amex Preferred card orr Chase card no fee card if you can.
Then every 3 to 6 months sign up for whatever card you can.