honestly, a bunch feel a bit dated in how they handle the 'strong female lead' trope. She's always the chosen one with a sword, you know? A less obvious pick I love is Marie Lu's 'Legend' series—June Iparis is a prodigy military investigator, and her strength is almost entirely cerebral at the start. It's a ruthless, strategic intelligence that drives the plot, not just physical prowess. The world is a gritty dystopian LA, and her partnership-turned-rivalry with Day feels earned because they're intellectual equals in different ways.
For something with more of a historical bent, I'm obsessed with Elizabeth Wein's 'Code Name Verity'. Calling it an 'adventure' novel feels almost too light; it's a WWII spy story about a female pilot and a spy, and it's brutal, brilliant, and will wreck you. The 'strength' here is about resilience, loyalty, and sacrifice under unimaginable pressure. It's not a fun romp, but it's an incredible, heart-stopping journey. On the complete opposite end, for pure fantasy adventure fun, Tamora Pierce's 'Protector of the Small' quartet, starting with 'First Test', is foundational. Keladry is persistence personified, battling systemic sexism in knight training with sheer stubborn grit, and her journey from page one to the end is so satisfyingly tangible.