I’m not sure I understand. If you want to get a free model.This website is a good choice, but please follow the license.
https://sketchfab.com/search?features=downloadable&licenses=322a749bcfa841b29dff1e8a1bb74b0b&licenses=b9ddc40b93e34cdca1fc152f39b9f375&licenses=72360ff1740d419791934298b8b6d270&licenses=bbfe3f7dbcdd4122b966b85b9786a989&licenses=2628dbe5140a4e9592126c8df566c0b7&licenses=34b725081a6a4184957efaec2cb84ed3&licenses=7c23a1ba438d4306920229c12afcb5f9&licenses=783b685da9bf457d81e829fa283f3567&licenses=5b54cf13b1a4422ca439696eb152070d&q=pants&type=models
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