I have been chosen for Zamnesia spring cup and this came with the package: https://www.zamnesia.com/fertilizer/6114-monster-bud-mix.html
If it works as promised you just mix this with the soil and its all the plant needs from seed to harvest. I will test this in the contest as soon as I have some space in my tent!
Also Aptus All in one pellets looks really promising and I have used aptus Humic - and fulvic blast. Aptus seems to know their stuff!!! https://www.growbarato.net/en/aptus-holland/3841-all-in-one-pellet.html
Mega Crop by Greenleaf Nutrients is advertised as all in 1... I'm currently in my first grow with it so I can't confirm that yet lol... Hope this helps. Happy growing ✌️👊
Also this stuff seems pretty promising and if you add Beneficial bacteria and mycorhizzae it will be really good soil. I use great white btw.
https://shop.greenhousefeeding.com/hybrids-bag.html