Should I buy a small greenhouse?

I want to grow some garden vegetables and fruits. I have a lot of animals on my property. Deer, turtles, rabbits, mice, moles, racoons, snakes, and who knows what else. I was thinking maybe purchase a small greenhouse type of thing, and have the plants in pots possibly, not the ground, only because I am guessing animals might come through the ground. All the plants need full sun I think.

Do any of you have experience with a small greenhouse? Can you recommend one? Not very expensive. Easily portable.

Otherwise maybe suggest an alternative like fencing? I just can’t imagine a fence around the garden would be enough, unless it was very tall. I am just thinking a few basil plants, cilantro, tomatoes, green beans, and some peppers. I just want it to be a fun project.