It was that picture in the article showing the size of that beast in relation to man that triggered this fantasy. Think Skinner’s ping pong playing pigeons - but scaled up to Godzilla size. Click & treat! :)

or like... some type of lizard?

Birds are in the clade ornithurae, which is within the clade dinosauria.

https://en.wikipedia.org/wiki/Bird

I’m unaware of any lizards in that clade, so if you want to own dinosaurs, then the birds are a better option.

But there are many great (other) reptile pets as well, such as lizards.