Here are some: Kovetz Shiurim (R. Elchanan Wasserman), Chiddushei R. Reuven (Grozovsky), Chiddushei R. Shlomo (Heiman), Shiurei R. Shmuel (Rozovsky), Shiurei R. Dovid (Povarsky), Shiurei Avi Ezri (R. Schach), Kehillos Yaakov (R. Y. Y. Kanievsky), Kuntresei Shiurim (R. Y. Z. Gustman), Reshimos Shiurim (R. Y. D. Soloveitchik), Shiurei R. Yechiel Michel (Feinstein), Shiurei R. Meshulam Dovid (Soloveitchik), Shiurei Iyun Hatalmud (R. Aba Berman), and most of the seforim by roshei yeshiva of the last century. Another good recent work on many masechtos is Birkas Avraham (R. Avraham Erlenger). There are also seforim which collect many of these chiddushim, such as Ateres Shmuel and Ohel Torah.