Stranger: Mukou Hadan, Dororo Recommendations
They both are set in the same time period. They portray a very dark and violent view of this era and boost fantastic fights. The main characters of both series seem to have a similar dynamic with a more talkative 10 year old boy and a quieter badass.
Both shows also involve one of the duo being sacrificed to a demon. In Sword of the Stanger, No Name is protecting the kid from being sacrificed, while in Dororo, Hyakkimaru has already been sacrificed.
These anime are so similar in feel it's very likely indeed you'll like one if you like the other. They are set in the same time periods, both feature a main protagonist and a younger side kick, and both feature heavy sword use. There's a lot of similarities here. Dororo focuses on demons, and Stranger on assassins.
In the series the prota both of them at first are a lone wolf but after they have a cute kid like a nakama. Teehee! also is highly recommended indeed.
A travelling swordsman in old Japan who is usually a badass loner gets a chippy little boy accompanying him as he defeats enemies all over Japan and is forced to protect the boy and confront his past.
Both shows revolve around the 'badass' sword master undergoing on a journey of sorts while accompanied by a young boy. Both shows also deal with demons/supernatural entities to an extent
both are mainly historical action anime that happen during the Sengoku Era. as a result, they have very similar vibes and feels.
The main characters have fairly similar dynamics in both shows. As I was watching Stranger, all I could think about was how similar it is to Dororo. They're obviously set in similar time periods, and while Dororo focuses more on the supernatural than Stranger, this difference doesn't translate to much difference in the vibe of between the two stories.
Both have two main characters where the older male character protects the younger child character. Also, both incorporate the samurai era and swordsmanship in the setting of their story.
Both are action packed samurai anime with great plot.