I would love to have a rabbit-sized Tardigrade (Bärtierchen). They look absolutely cute and I don't need to feed it when I am on holiday. They survive anything. The only drawback is that I would need a microscope to see it as they are so tiny.
I would love to have a koalabear or a rabbit-sized elephant. I already have two cats, called Marble and Mia, many fish, a hamster called Pia and a small dog called Lilli. Earlier in life I had another three cats, Oscar, Tiger and Mau, a maltese dog called Quitto, three birds, Lzcky, Luke and Gustav, a rabbit called Schnüppi, a hamster called Vicky and a mouse, Pauline. The next pet shall be a turtle, maybe. As you can see: I really love pets 😉😍