I use Advanced Nutrients Connoisseur bases. I got both grow & bloom sets in 1L for $60 total so I can't complain.
I also use Real Growers Recharge in Veg for NSB nitrogen solubilizing bacteria.
MammothP or Plant Success Organics (cheaper) for PSB Phosphorus Solubilizing Bacteria in bloom. In late bloom I use Advanced Nutrients Piranha, because that's the only form of B. Mucilaginosus I could find as a Si & KSB potassium solubilizing bacteria. I'm researching purple non sulfur bacteria from Quantum Light. So basically a custom tailored rhizosphere & can use less Nutrients is the purpose.
I have TPS cal/mag & Dynagrow Protekt for Si that I sparingly use in low doses.
I have Fulvic Acid powder that I use as a natural chelator, I also use seaweed , alfalfa & fish emulsions from microlife. I will be using cytoplus in bloom this go around as a booster. I use Vitazyme for a brassinosteroid & triacontanol source, Green Planet Massive Bloom formulation 1-2-3 has tria, aminos, 8 different sugar/carbs food for micro bennies and micronutrients. Their weight product is solid too. I use Advanced Nutrients Nirvana, B52, Bud ignitor, Big Bud & or Kushie Kush for low dose npk bloom booster. I use TidalVision High Tide for chitin & aspirin salicylic mix for SAR & Harpin Proteins for JAR applications. I try to shoot for a hybrid nutrient approach, but natural plant pgrs only. I grow in a coco/soil/ perlite / biochar / diatomaceous earth with green sand mix. Yes I know its all alot, but I use low doses and some I use for in teas , foliar or root drenches & inoculants.. if I am going to use Advanced Nutrients I learnt in the past they aren't all that and I dropped or replaced some of their lineup. I try to use as much organic based Nutrients I can source, but I do use Advanced Nutrients in low doses 2ml/L only.
I personally like playing mad scientist I watch my ph, add aloe to my water & watch my ladies religiously. I bump ppm up slowly to see what works best, all the while a mix of organic & inorganic for my rhizosphere. I'm kinda ocd, but it's never disappointed me.