Full Metal Panic!, Toradora! Recommendations
the relationship between kaname and souske is very similar to the relationship between taiga and ryujji
The relationship dynamic between the protagonists are very similar in both anime. In fact, even the personalities bear strong resemblance - short tempered and feisty female lead versus reserved and awkward male lead who are forced to be together and overtime, grow on each other. Biggest difference is FMP is a mecha genre and slightly more serious (themes of war, more suggestive).