Just about 2+ years and going on 10 plants in the jar. I find Bubbleponic hydro to be tried and true. Just find a groove and work within it.
Depending upon what you have to spend. My closet is exactly 4ft x 2ft ang affords me up to 3 autoflower plants or 2 photoperiod. And Skid Row closet grow is not automated. Hands on daily feeding and the ability to see everything going on above and below the water line.
Each plant is in its own bucket and no cross contamination.
It's a big job for me to guide you step by step photo guide about my entire setup and I can't post videos in here. I can alter my setup to accommodate high quality coco choir buckets that requires a little less work...