ym8016

If you're talking about the Growatt SPF 5000 ES, then I'd personally I'd look at the first string being 5 Megatron in series with 3 JA, and the second string being 5 Hyundai in series with 3 JA. But also, that's if you're satisfied to connect just 7.25kW of panels when the inverter(s) can handle more. Just a personal opinion, to be checked professionally.
The disadvantage would be in that you cannot cannot effectively approach the maximum 6000W solar array that each inverter can handle, or efficiently upgrade after that, unless you use a different panel that's more closely matched to the 18A MPPT spec. In theory the additional 4 Megatron panels will mostly not quite cover charging the additional storage capacity.
It's your call to check/say if it meets your needs; there's not enough info about your daily loads and off-grid/on-grid situation to form a proper opinion.