Yes, some Musa and Ensete varieties can be grown from seed quite successfully. Musa Basjoo can’t be grown from seed though, just from suckers. Ensete are easy to grow from seeds, and I have had quite good results, as long as you have someone warm to get them started. A small propagator is sufficient to keep the warmth and humidity suitable for growth. Try it, it’s not as hard as you might think! Make sure you buy from somewhere reputable, Jungle Seeds is great place to buy them from.