Please post your suggestions, tips, questions, advice here!!

I’m trying to find a way to grow as much food as possible in containers in a small space. Do you know what plants grow well together? Which plants have shallow vs deep root systems? Which plants are heavy feeders, which are light feeders?  Which plants need extra help with their soil mixes? Any advice or tips would be greatly apprectiated and I’ll try to experiment with all of them!