 If you liked Sora wa Akai Kawa no Hotori |  ...then you might like Akatsuki no Yona |
Red River is very similar to Yona as they're both fantasy stories about strong female leads doing their best for their respective kingdoms. Yona is a castaway princess trying to understand her place in the world after her father is dethroned and Yuri is a modern Japanese girl thrown into ancient Anatolia isekai style and falls in love with a prince there. Both are high fantasy traveling stories about royalty and the responsibility of those in power towards the common people. The main difference between the two I would say is the romance is more intense in Red River than it is in Yona. But
These both are so similar that I'm surprised no one has made this recommendation yet. At the surface level, one can easily point out that they both are strongly historical, romance, shoujo genre. Although they have various minor differences, there is a certain vibe that both contain. They both consist of a weak protagonist that grows stronger as each chapter passes and their romantic interests are overly protective (leading to a balance with the males stepping in to help once in a while and the protagonist actually doing stuff by herself). There is a lot of different characters with different interests driving the story. With
report Recommended by trishiscool
Long running shoujo with protagonist who is a girl that has a position to command military troops and gets into some trouble concering the royalty and throne.