Living soil loaded with biology.
Down to Earth, Gaia Green, Build a soil, KIS Organic,RealGrowers amendments. It depends who has the sales for what I need. (Biochar, kelp meal, neem seed meal, insect frass, alfalfa meal, Dolomite lime, azomite, rock phosphate, langbeinite, gypsum, humic acid, crab meal, ag lime, oyster shell flour, Diatomaceous earth, bokashi, glacial rock dust, basalt Rock dust, and the kitchen sink 🤣)
I also do my own Vermicomposting in a VermiHut. Every 6 months, I get about 30lbs or more of A++grade castings full of life.
I’ve been reusing the same soil for 2 years now. With every grow things just seem to go better and better. Like aged wine. The soil just keeps getting better and better.