New here, Need to build my marketing through Tshirts!

Hello all! My name is Luke, I own a supplement store in Florida, as well as a kratom distribution business, I am looking for information on:

-The newest, best quality shirts on the market
-The highest quality shirts to use for each purpose
-The best type of printing style to use
-A good supplier of shirts in large quantity
-Any information I am missing or could use to make a high quality shirt

I am very excited to be here and learn from all of the knowledge available here!