* Same studio
* Same director
* Same female trio MC seiyuus/OP singers (Earphones, consisting of Rie Takahashi, Yuki Nagaku, and Marika Kouno)
* Both EDs usually vary on the music every episode
* Both contain outside references that most otakus can appreciate in every episode
Both are very enteratining comedy anime, which are kinda similar. Konosuba features a group of people in a rpg game world completing quests, and akiba's trip features a group of people trying to protect a shopping town, from creatures who posess people, who are defeated when all their clothes are stipped off (weird concept lmao).
Both feature an over the top male protagonist, and a group of female characters that work alongside them.
The akiba trip anime is based on a game, but i didnt play the video game, and really enjoyed it.
Both shows take their premise and deliver an over the top journey, all while referencing tons of other anime, games, people, etc. They both also do good job incorporating fanservice and building a story around their fanservice deliver device.