How Useful is Google Search Console to Get Your Site Indexed?

Google Search Console is the fastest way to index your site's pages.

If you have a new site or new pages on your site, the best way to index a page is to use Google Search Console and submit the page(s) for indexing. 

Note: You can not ask Search Console to crawl an entire site. It must be one page at a time.

Once the Google crawler is on your site, it will most likely follow the internal links to other pages on the site, especially if the pages have not been seen by the crawler yet.

If your site has many pages and Google is not indexing them all, they are low quality, or Google is not finding all the pages. Improving the quality of the pages or creating more links between your deeper pages will be necessary.