Boku no Hero Academia 4th Season

Both shows pit heroes against increasingly dangerous villains. Both are shonen high intensity action shows with epic battles and a large cast of interesting and powerful characters. Both shows have great character designs and amazing art styles. 

Goody two shoes boy wants to save a girl whose power are being used to for "evil" deeds. The girl doesn't want to be saved. 

it is similar cuz both are good shounen's and have the same vibe from powerless to becoming strong training hard having a good teacher good friends and both the MC have a powerful impact on those around them making other people push forward. 

Both center around a class training to become something (assassins, heroes) and have a teacher they look up to (Koro-sensei, All Might) 

Both the most recent in their respective "hero" anime series. To Be Heroine is a lot more crass and gag focused whereas MHA can be a lot more serious and sometimes dark. Both have great OSTs, character designs, humour and art styles. 

Both newer incarnations of popular shonen JUMP franchises. Both have super powered characters, intense battles and vast and interesting world building. Both shows have great OST's, art styles and characters. 

Both extremely popular "Hero" anime that focus on a world with Heroes, Villains and super powers. Both have a main character who is or will be the strongest hero. Both have amazing OSTs, animation and characters. Both have very similar world building with both having Hero associations and increasingly dangerous villains. 

Both the most recent series of extremely popular super powered action battle shonen JUMP series. Both have similar style action, power progression and humour. Both mainstream and belong to two of the most successful anime series. Both have great characters, OSTs, character designs & world building.  

Both "Hero" series that have world building with heroes, villains and super powers. To Be Hero takes itself a lot less seriously and is much more crass but MHA also has a great sense of humour. Both series have great OSTs, character designs and animation.  

Both the newest seasons of iconic "hero" anime. Both have flawless humour and character designs. The setting and world building is almost identical for both series. Both also cover what it means to the strongest/best hero in their own unique ways. 

Both extremely popular shonen JUMP series that both have super powers, intense battles and progression. Both have brilliant characters, world building, art styles and sense of humour. Both shows have epic and iconic heroes and villains.