Big article about growing sprouts in this months Kitchen Garden mag.
It says for peeps with a small plot go for F1 hybrids. They do best in rich soil with plenty of organic matter in. For earlies sprouts for harvest in Aug, sow in Feb, mid March to mid April sowings will provide late autumn and winter crop. Even for smaller plants, 'they' recommend good spacing of at least 2 foot. (mine are closer, so I guess I will be getting smaller sprouts!)
Sprout taste test carried out by Which mag reckoned on Braveheart, Romulus and Maximus as the sweetest with good texture, but others that are top of the sweet list are Bridge and Oliver.
Hope this helps Aqui. I couldn't be without sprouts in my garden or plot as they are my MOST fave green veggie. I plan to have a low harvesting period next year starting early and finishing late, altho guess what...tis only me that likes them so one or two plants will be enough!