The ones that have instructions available online. On youtube perhaps. Or some pdf. I personally want:- no 3d geometric tesselations- no wet folding- no glue- no repetitive tedious folding like scales and feathers and patterns- folded from reasoable-sized square paper, like 20cm x 20cmPicrel are Jacky Chan's origami duckling and Jo Nakashima's penguin on youtube.
Fantasma by Anibal Voyer:https://www.origami.cz/Pdf/ghost.pdf
Hadi Tahir’s cars and tanks. You can easily find instructions online.