The Swordsmith Village Arc in Demon Slayer is really exciting. It focuses on Tanjiro and his friends protecting the swordsmith village. There are new and powerful demons that attack. Tanjiro has to face these threats while also dealing with his own growth as a demon slayer. The arc also shows the importance of the swordsmiths and their unique skills in making the swords that are crucial for the demon slayers.
After the Swordsmith Village Arc, you should start at the chapter that directly follows it. Sometimes, you can check the manga's official website or forums for specific chapter numbers and guidance.
The ending of the Demon Slayer manga sees the main characters achieving their goals and finding some form of peace. But to avoid spoilers, I suggest you read it yourself to experience the full impact.
The ending of the Demon Slayer manga is a mix of closure and hope. The heroes overcome the challenges, and there's a sense of a new normal emerging. It ties up loose ends while leaving room for imagination about the future of the characters.