Super Dragon Ball Heroes

Both shorter promotional anime for video games. Both have short episodes focused of giving the series' respective dedicated fans fanservice and additional lore. 

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. 

Both short promotional anime for their respective franchises' video games. Both are almost exclusively for dedicated fans of their franchises and simply provide additional content and lore. 

These are both short series promoting their respective games. They both take little time investment and are great fan service for people who play the games. They are both also worth giving a shot if you've heard of either game as it may give you the push you need to finally try it if you enjoy the series.