Kodai Ouja Kyouryuu King

Kids - heroes of the anime - are collecting magical creatures and fighting a group of bad guys that keep getting in their way. The creatures can either level up or otherwise get stronger and continue fighting each other. 

It has the same theme - small magical beings turning into powerful creatures, fighting each other and leveling up/using special cards. Kids are their tamers and are the heroes of the anime. 

Both have card games, monster battles and a high tech future setting with sci-fi style inventions. Both have great English OST's. 

Both classic kids monster battling anime that are a lot more niche yet similar to more popular shows such as Digimon & Beyblade. Both have sentient creatures based on real world animals. Both have similar aged protagonists. 

Both series feature young protagonists who have monster friends with whom they engage in battle. They also both have comically incompetent evil teams. 

Both popular kids monster collecting anime. Both have intelligent creatures with deep bonds with the human character counterparts.  

Both kids anime that have sentient monster companions to human heroes. Both shows have the creatures communicate with the heroes in order to combat a common enemy. Both more niche alternatives to classics such as Pokemon, Digimon, Beyblade & Yugioh. 

Both toy promoting children's anime. Both target the exact same demographic/audience and thus share a lot of their appeal. Both follow a cast of young kid heroes who fight for righteous ideals. Both relics of a forgotten age in that the English dubs have original English language OPs that slap. 

Both "monster battling" kids shows with heavy futuristic themes. Vrains has AI & VR whereas Dinosaur King has time travel, spaceships etc. 

Both shows focus on their young cast of characters and their befriended monsters. In both shows these monsters engage in battles against enemy monsters of their same creed. In both shows the main human characters form deep relationships with the monster friends. 

More niche titles from the monster battler kids anime era that spawned classics like Pokemon, Yugioh & Digimon. While never reaching the same heights as some of their contemporaries, these were both still fairly popular, enough to spur sequels and many real world products and games. Both feature a cast of young kid heroes who battle with their sentient creature partners (dinosaurs/bey bitbeasts), often against some form of forces of darkness.  

Both kids anime with futuristic tech. AR, Time travel, holographic tech, vehicles etc. Both also have monsters and cards, with the monster spirits being within the cards. The human kids use these cards to battle/duel each other. 

Both are kids shows that feature a cast of young characters who battle with monsters who have had their spirits sealed within inanimate objects (cards & spinning tops [made cool]).  

Both have young protagonists who control monsters to battle. There both have comically incompetent evil teams that often clash with said heroes. The monsters can be both cute and tough. They get into a relentless amount of battles and show unyielding determination to win. 

Both kids shows that feature a cast of young protagonists with monster companions with whom they battle their enemies. Both have great character and monster designs with a similar and compelling charm to the show.  

Both kids anime that have monsters sealed within cards. The monsters in both series are intelligent and sometimes communicate with our heroes. Both have great English dubs and soundtracks. 

Both feature card games, children protagonists and the characters of the show have monsters that they control. They are targeted to the same demographic and contain similar themes and appeal. 

Both iconic children's anime that focus on young heroes and monster battling. Both shows monsters seem to be sentient spirits trapped in objects owned by the characters. Both shows have themes of morality and friendship.  

Both have teams; "D-Team" & "DATS". Both these teams ally themselves with the series creatures, Digimon & Dinosaurs. Savers targets an older audience but both shows have similar tones and premise. 

Both kids anime that follow young human heroes who ally themselves with their series' respective sentient creatures. In both the kids join the cause/battle of their creature companions and face a common enemy. Both shows also have similar senses of humour. 

Both extremely popular kids shows that focus on young protag's who battle with monster companions/friends. Both shows see their main characters form deep bonds with their respective "monsters". 

Both kids anime that involve children fighting alongside intelligent creatures who are trapped within inanimate objects such as cards and disks. Both series feature both cute and ferocious monster designs. In both the protagonist(s) form deep bonds with their monster companions. 

Both similar styled kids monster anime that target the same demographic. Both have varied monster designs with both cute/cool/formidable designs. Both series main characters are similarly aged children. Both have sentient creatures that partner with the series' human heroes. 

Both classic kids anime. Both have revived ancient monster spirits. Both have young children characters. Both have companionship with the revived monsters and the kid characters. Both have intense battles and wide varieties of monster designs. 

Both kids monster battling anime with sentient spirits sealed within objects such as cards & beys. Both have similar aged heroes/protagonists. Both have great English dubs & OSTs.