Bing Webmaster Tools
Search Console for Bing, with its own keyword data
Bing Webmaster Tools does for Bing what Search Console does for Google: verified sites get crawl statistics, index coverage, query and click reporting, sitemap submission and URL inspection. It is free and worth setting up even when Bing is a small share of your traffic, because the data differs from Google's and sometimes exposes crawling problems earlier.
It includes keyword research backed by Bing's own query data, a site scan that checks common on-page problems, and back-link reporting that does not require a paid subscription. Sites can be imported directly from Search Console, which makes setup a few minutes of work. With Bing powering several assistants and other search products, its index is also worth watching for reasons beyond its direct traffic share.