Whatever the local hydro store sells...that’s what you want. There are many different brand names out there, but essentially, they are all the same. They all have N/P/K ratios that follow a general guideline for the ratios. You will also need a Cal/mag additive.
I use a brand called MegaMass (mymegamass.com) which is a brand I don’t think I’ve seen anybody on GWE mention. For your first couple of grows, keep it simple while you learn by just using the basic nutes. once you have some experience and knowledge, you can begin to look at all the other “enhancers†and additives.
Also....make sure you get some type of additive to prevent root rot and use it from day one until the day you harvest.
Remember, nutes are only a part of the equation. Light, temp, and humidity are all just as important for the plants.