I would regard them as canonical, although I don’t read them often. Two reasons for this. First, they do not appear in the Bibles I normally use. Second, there is not much of a doctrinal nature to be gleaned from them, so I would not go there in search of a scriptural “position.” In fact, I know of no points of doctrine they contain except for the idea of praying for the dead in 2 Maccabees, and that is not really sound because the prayers were offered for those who died while worshiping idols. That being the case, it is difficult to imagine that these men went anywhere but straight to hell where prayers for them would be to no avail.
That being said, there is a good deal of truth in these books. For example, Baruch makes the strongest case anywhere in the Bible against worship of idols. Wisdom and Sirach are every bit equal to Proverbs in their sagacity, and maybe more so. Tobit tells a beautiful story on the same level of Ruth and Esther. It also introduces us to the angel Raphael. Maccabees fills us in on much of that historical gap between Nehemiah and the Gospels. So I would recommend these books as useful, even canonical reading. I would no doubt spend more time with them if they were more convenient to read.