If you want to approach it in Japanese, one of the Kanbun links in the post should do. For English, there's "Introduction to Classical Chinese" by Kai Vogelsang, "A New Practical Primer of Literary Chinese" by Paul Rouzer, and you can also check out this link.
Also I got into it by reading Souseki works, such as 草枕, where he actually quotes classical chinese passages.
If you want to approach it in Japanese, one of the Kanbun links in the post should do. For English, there's "Introduction to Classical Chinese" by Kai Vogelsang, "A New Practical Primer of Literary Chinese" by Paul Rouzer, and you can also check out this link.
Also I got into it by reading Souseki works, such as 草枕, where he actually quotes classical chinese passages.