Very large flower pots (Howell, MI)

I need some very large containers, 20 inch wide flour pots not clay becauseit willcrack in the winter months, or anything that I can use even 5 gallon buckets, or even clean barrels that I can cut down. This is all to use for me to be able to grow raspberry and other large growing vegetables on my apartment patio.
I'm in Howell
I really appreciate your help