Choosing Nutrients for Coco (im a beginner)

So this will be my 3rd or 4th run I got 1 harvest down...got some vegging got some in flower next month is harvest #2 and in February I’ll have 1 year under my belt

previously was using Cutting Edge Solutions full line up includes a SI I also mix it with Sea Green



solid but looking to upgrade or use what I see others use

So the brands I’ve been looking into

1) Athena Ag (blended or Pro line)
2) Flora Flex nutrients
3) Front row Ag
4) Crop salt

I plan on hand watering and using Power Si reg & Power SI bloom...I’m grabbing an under the sink RO system...still wanna use or incorporate sea green (Primordial solutions) ALSO I GROW In Royal Golds Tupur

Any insight is welcomed and appreciated