Digimon Adventure 02, Dennou Boukenki Webdiver Recommendations
Digimon Adventure 02 and Dennou Boukenki Webdiver are similar in terms of story:
-Both are about a group of children who fight amongst a partner.
-In a digital world, but it also affects the 'real' world.
-No spoilers, but some characters have similar storylines/traits in both series.
The difference is that in Webdiver the partners are robots, in Digimon they're monsters.
If you liked the story of Digimon, you'll probably like Webdiver's story as well.