Where I can post information about some offer or job? I need 3d models for some project, where I can ask for help ?
Hello, and welcome. It’s nice to see someone who “asks before asking”.
See this thread (first and third post) then, depending on the relevance of (use of) Blender in your project, post in either News & Discussion or Off-topic Chat.
If it’s a very serious (and paying) thing, also consider BlenderJobs.