Thank you for being so nice omg. When I was typing that last comment I wasn’t crying into my mid- cereal or anything. I wasn’t. Here are some links. If you wanna talk more shoot me a msg, if not cool. I’m not an expert Christian or anything but I have been reading deeper and discovering some cool things so if my explanations suck, it’s because I don’t have degree in this. I just want point out that none of these sources are secular (I couldn’t find any - surprise, surprise).
https://www.desiringgod.org/articles/where-is-jesus-in-the-old-testament
https://zondervanacademic.com/blog/jesus-in-the-old-testament
https://www.jesusfilm.org/blog-and-stories/old-testament-prophecies.html
https://equip.sbts.edu/article/christ-in-the-old-testament/
There are some lengthy YouTube videos on this subject also;