There are many plants that can be grown in a portable grow room, but some of the best options include:

1. Herbs: Herbs such as basil, mint, and cilantro are easy to grow and can thrive in a portable grow room. They require minimal space and can be grown from seeds or starter plants.
2. Leafy greens: Leafy greens such as lettuce, spinach, and kale are another good option for portable grow rooms. They are easy to grow, require minimal space, and can be grown from seeds or starter plants.
3. Tomatoes: Tomatoes are a popular choice for portable grow rooms, as they are easy to grow and can produce a good yield. They do require more space and attention than some other plants, but they can be grown from seeds or starter plants.
4. Peppers: Peppers are another good option for portable grow rooms, as they are easy to grow and can produce a good yield. They do require more space and attention than some other plants, but they can be grown from seeds or starter plants.
5. Microgreens: Microgreens are small, nutrient-rich greens that can be grown in a portable grow room. They are easy to grow, require minimal space, and can be grown from seeds.

By choosing the right plants for your portable grow room, you can enjoy a variety of fresh, homegrown produce all year round.