Plant count problem

Hi guys long time reader first time poster. I currently have 8 plants that are vegged about 24-32 inches. They are all different strains. I will be using scrog and a 36 hour dark period (when changing light cycle) to control vertical growth a bit, but I'm wondering what size space I may need to flower these plants. They're in 8in buckets right now and will be going to 10 soon. I did a lot of topping too so they are pretty bushy.

Thank you ahead of time for any help. I really need to flip to flower soon!

What medium are you using? I topped and got over 100 colas but in the end the buds were pretty small. Now I use vertical lighting and there is no need to top. Given enough light they will bush out very nicely. In order to tell you how much space you will need we need to know the strain you are growing. If it's an indica then they typically never get over 3.5 feet tall. As for the length and width I would say it depends on the number/size of lights and if you are using a hood or vertical growing.