Sousei no Onmyouji

Both are animes about onmyōji, with characters like Abe no Seimei always mentioned. 

Very similar stories about exorsists in-training wanting to become stronger. Both stories use the legend about Abe no Seimei as their core. Male MCs and female MCs are becoming much closer as the stories progress. 

Both stories follow young teenage Onmyouji's who come from societies where onmyou families are important. While the main two characters are essential to the survival of the world, they form a romantic relationship of a kind. Personally I enjoyed Tokyo Ravens more than Sousei no Onmyouji, but if you enjoyed one you should be able to find some merit in the other.  

Both have the same plot were it involves a family of exorcist whom were out to deal with the supernatural and in also has that comic and drama relief in it.  

- Stories about Onmyoji's - The Male MC and Female MC have similar characters (One does not become onmyoji and another is serious about work) - Interaction between the characters are almost the same But if you look more for a Shounen series, Sousei is the best. For the other genres (especially romance) Tokyo Ravens is a better choice.  

Both anime are pretty much simmiliar Both have the story of Abe no Semei But one big diffrence is animation,bcz of animation you will probably take more seriously the story of Tokyo Ravens 

- both have exorcist like characters - both exorcism scenes are done with action or fight scenes - when fight scenes happen they go to some parallel world to prevent damage - both have monster like creatures that should be prevented from harming humans  

- Both are shounens, action, supernatural. - They present corrupted beings born of the bad feelings of the people and attack humans and should be exorcised (in the case of Sousei by exorcists and Noragami by gods). - Both protagonists have tragic past in which they had to kill people. 

-Both have romance between the Male MC and Female MC although in Noragami it isn't explicitly stated they're a couple in the show - Both deal with Exorcism and Kegare -Noragami is also lighthearted at times but switches to serious dark stuff when the plot needs to just like Twin Stars Exorcist -The Noragami Anime is superior to Twin Star Exorcists while the manga for both (TSE and NG) are really good and I recommend reading them -Both have some action although Noragami is more comedy than action in the first season 

Its very similar like Noragami have the Gods and Twin star Exorsist have the Exorsists 

-Both Anime is About Demons and Exorcist. -Both of the Main Characters are Annoying at first, but they become Useful Later on. -Similar Fight Seems. -Both of the Manga that are originally from are Publish by Shounen Jump. 

Both anime tell the story about exorcism 

Both series featured exorcism where the main characters fight the demons who tried to destroy the world. Both series are from Shounen Jump manga. In the English dub, Bryce Papenbrook voices a main character who dreams of becoming an exorcist and hilariously enough, both of his voice acting role whose first name starts with a letter R. (Rin and Rokuro)  

Both anime series feature demon hunters (exorcists) as the main characters. Both anime series have a supernatural element with the supernatural creatures being the demons. Both anime series have a protagonist with a unique power (Rokuro in Twin Star Exorcists can absorb the power of the demons and Yukio Okayumura in Ao No exorcist can control flames). Both anime series have strong themes of friendship and the power of teamwork. Both Twin Star Exorcists and Blue Exorcist (Ao No Exorcists) are dark fantasy anime series that center around the themes of exorcisms and the supernatural. In both shows, the main characters are young exorcists who fight against demonic entities and other supernatural occurrences. Additionally, both shows explore the complex relationships between families, specifically between siblings, as both protagonists must rely on their siblings to aid them in their battles against demons. Furthermore, both shows feature character designs and animation styles that are dark and edgy, with an emphasis on action and epic battles. Even though twin star exorcist also explores the romantic theme more but the fighting scenes are awsome overall.  read more 

-Both have the Female MC and Male MC as 'exorcists' exorcising demons (ayakashi / kegare) together and want to protect one another -Benio has a fox familiar and tokine + yoshimori have fox/dog familiars -Have similar genres of comedy, supernatural, action, etc All in all, each are good shows  

A boy and girl duo that are both considered exorcists fight against supernatural creatures, and both have pets that help them out.  

Both anime deal with exorcism and both of the protagonists have a cursed arm which allows them to fight. The atmosphere of both series is quite dark for most shounens. Main difference is that Sousei's protagonist is more hot-headed than D.gray-man's.  

Both The Anime -Have main characters portrayed as exorscists to exterminate the group releasing them -Have a weapon with which a creature/soul is attached which is the weapon for the Mcs -Have a dark setting the world is rampant and a complete destruction -A similar theme of friendship and humanity 

- Guy and girl start as a reluctant team but end up falling in love - Similar story arcs - Both have cliche anime tropes - Not really much else I can say without spoiling but they're very similar in most aspects except for the actual plot (I enjoyed Sousei no Onmyouji a lot more though and it's not hated as much) 

It's basically the same anime. It's built around the same premise. I do think that Sousei no Onmyouji executed it better though.  

Both MCs are partners who fight evil enemies Both have the same skill/power called "Resonance" There are many characters with different kinds of skills/weapons