Kuro no Shoukanshi

On the surface, there might not seem like any similarities, yet the main male protagonist of Kuro no Shoukanshi is similar to the female protagonist of Zero no Tsukaima in that they don't let anything get in their way. Both series also have their own ways of putting the overpowered character on it's head, with one preferring to go unnoticed and remain free while the other - the overpowered one isn't the person who fell into the world, but instead his companion. 

Just sit back and enjoy this anime that brings this Overpowered MC to an Isekai world with an enjoyable story, nice art, and good soundtracks 

Isekai anime with summoner class MC. 

basically the same but one is an isekai  

Watching black summoner has me constantly thinking back to when I watched shield hero. If you like one you will like the other 

Both are summoner protagonists, but Isekai Maou contains more ecchi while Kuro no Shoukanshi is more exploration/adventure oriented. 

Overpowered MC - Check! Likable characters - Check! Feel-good vibe - Check Fun & enjoyable story - Check! 

Very good anime & feel-good story Isekai/fantasy setting Likabale characters  

Both "The Eminence in Shadow" and "Black Summoner" explore protagonists navigating through worlds filled with magic, monsters, and formidable adversaries. They share dark fantasy themes with intense action sequences and strategic planning. However, "The Eminence in Shadow" focuses on a protagonist who uses his cunning and manipulation to shape events from the shadows, employing a harem of skilled individuals. In contrast, "Black Summoner" follows a summoner who uses his magical abilities to overcome challenges and enemies directly, often involving intricate battles and exploration of the magical world's depths. 

Both MC's have similar way of gathering new allies