Tomato growing

Can anybody recomend what to grow tomato plants in. In the UK you would grow them in Grow bags. What is available here in Spain. I have grown the plants from seed and they now ready to be planted out.

I've never seen grow bags over here. I just use big plastic pots. Last year I used a couple of those builder's trug things, that you can get from the Chinese stores for about 5 euros each. You need to try and mulch with something though, otherwise they dry up very quickly in summer.
I've just got dwarf varieties this year, so they're in fairly normal pots.