Garlic is always a good idea (but takes a year) and we've had garlic for a few years now. If you plant it between your strawberries (if you have same) you'll fewer snails and slugs eating them. Raspberries if you like them but be aware those are basically weeds and getting rid if them is hard.

Broccoli does grow nicely and it's worth it. I love cucumbers because they taste much better home grown. Tomatoes?