I just came across this online metal supplier. The prices seem reasonable I think or maybe it’s just that all shipping charges are included in the price. AKA “Free Shipping”. https://onlinemetalsupply.com/
At least with some online retailers I’m frustrated by feeling lured in by a low prices only to be hit by high shipping charges late in the checkout process. I’m sure it’s just a personal preference but that’s my story and I’m sticking to it. 
PS: Their filtering tools on the left side of page are quite functional at helping locate stock of specific sizes etc…