Link building websites list?

I guess, you should take into account your target audience first. Of course, most people strat with social media sites, but it's better to understand which of them will be good for you.

I think you're not starting it right. You don't need a list. You need good research skills for understanding which niche your website has, and then trying to find relevant websites that might link to you. Always remember, this is not an automated process. It requires hard working and research skills.

I will add bellow some links, which will guide you to build right links :)

https://www.quicksprout.com/the-advanced-guide-to-link-building/
https://moz.com/beginners-guide-to-seo/growing-popularity-and-links
https://backlinko.com/link-building
http://pointblankseo.com/link-building-strategies

Don't try to do something that is automated.

Good luck.

Some sites: Moz, ahref, similarweb