Some effective soccer drills include dribbling exercises like weaving through cones to improve ball control and agility, passing drills such as the "passing square" and "triangle drill" to enhance accuracy and teamwork, shooting drills like the "finishing drill" and "cross and finish" to develop scoring techniques, defensive drills including the "1v1 defending drill" and "pressure cover balance" to improve tackling and positioning, and fitness drills incorporating high-intensity interval training (HIIT) like shuttle runs and sprints to build endurance and speed. These drills collectively enhance various skills essential for soccer players.