I'd suggest learning with bag seed first buddy. I'm new myself and thought I could jump head first into buying premium seeds. Long story short I had 8 seeds and now I have 3 left that Im gonna save until I get some experience under my belt. I lost 5 seedlings to damping off
But to answer your question, I ordered from Attitude Seedbank. Highly recommend those guys
I can swear by Attitude. Seems like lately their products have been coming quicker then ever. But, to repeat what has already been said, I'd start with bagseed as a first grow. I'm sure not all people, but it seems most people take their first grow as a learning experience on what to do right the next time. Just my $ .2