Hello and welcome to GT!
Different adoption groups recommend different things, ours always recommended crating. It depends on the dog. When we adopted our first greyhound seven years ago, we followed the crate instructions to the letter and our Breeze was just fine with it. She told us when she didn't want the crate anymore, two years later! With Beka, we only used the crate for a short time because she was having NONE of it! We adopted Ivy last June and she LOVES her crate. The first night she cried and cried, she was in her crate downstairs by herself. Once we brought the crate up to our bedroom, she was fine. She still loves her crate and chooses to sleep in there at night, every night!