Agreed, right after cycling yoru tank is not the time to add too many fish at once. Like if you wanted a pair of clowns I would say go for it but otherwise one fish or maybe two at a time. Kinda depends on the fish too. And after that you should wait a week or two before adding again, just enough time to let the bacteria catch up to your bioload.
Are you considering a quarantine tank? Would be a wise investment. I;ve been qt'ing my fish since I had an unknown outbreak that wiped out 6 fish in less than a week. Just something to think about. A 10g tank and some sort of filter is all you really need for it, oh, and a heater.