Yeah, local-ish fish are more apt to be adaptable to your water & much less expensive even if you need to call ahead to see if the not-so-local shop has fish you might want to buy.
I have gotten fish on aquabid, a no longer in biz seller & in person at wetspot…& a AC seller on the mart here. I have heard good things about liveaquaria, but shipping can be really, really high if your only talking about 6 fish or so...take that into account...do you "need" those fish exactly? or what?
It's easy to focus on exactly what species or strain you want early in the hobby, but there are usually "similar" species that are "close enough", think about it before you order hundreds of $$ in "perfect" fish...you're still learning, no need for very expensive mistakes...That's for us oldtimers, lol.
Can you tell us what area of the country or big city you live near? There may be a club or lfs you could visit on a road trip with a good lunch too. We'd love to help! Ask us!