Crawwlomatic just got a major update today: it can import any number of content from the crawled pages, and store them in custom shortcodes to use the in post content/title/custom meta/custom taxonomies. Also, yes, it will also be able to create custom post taxonomies for generated posts.
Crawlomatic plugin URL: https://1.envato.market/crawlomatic
▶Portfolio – https://1.envato.market/coderevolution
▶DONT CLICK THIS – https://www.youtube.com/channel/UCVLIksvzyk-D_oEdHab2Lgg?sub_confirmation=1