I enjoy learning Rav Soloveitchik's Hararei Kedem and Rav Zevin's Ha’moadim Be’halachah to prepare for Yom Tov. Does anyone have any other recommendations for sefarim similar to these? Specifically, in Hebrew and discuss sources and analysis (lomdus) on Yomim Tovim. Could be a rec on one Chag specifically doesn't need to be like the above which are on all of them. Thanks!
As Joel K said, Moadim Uzmanim is the most classic.
Another sefer gaining a lot of popularity is Yerach L'moadim by Rav Yerucham Olshin.
In addition, some halacha sefarim have a lot of well-presented lomdus in the footnotes. A few good examples are Chazon Ovadia by Rav Ovadya Yosef, Halichos Shlomo based on the rulings of Rav Shlomo Zalman Auerbach, and Kovetz Halachos based on the rulings and opinions of Rav Shmuel Kamenetzky.