I have started using ILGM Flower Power. On my 3rd grow and have had excellent success and quality. Easiest nutrients I ever used. Try a starter pack, available in the ILGM shop.
The bigger packages seem expensive but, they have a long shelf life and if you are doing a larfge frow you will need to buy large KILO of Bloom and 1.2 KILO of boost. Start and Grow seem to be enough from the starter pack.
Starter pack is good for 2-4 plants, 1 to 2 grows. I had to get Bloom and Boost for 2nd flowering. Happy growing