There are many job boards with remote work. Same LinkedIn.
And they are all complete crap.
My top is as follows:
1. Personal acquaintance with the hiring person.
2. A strong referral, not just a button on the site, but bring a resume to the manager and talk to him about my advantages.
3. A weak referral, button on the site. The ability to write to the recruiter by email. The HN "who is hiring" - from this point.
4. Shout out the window if anyone needs a remote employee.
5. Open job boards.