Hai to Gensou no Grimgar, Tate no Yuusha no Nariagari Recommendations
similar setting although hai to gensou no grimgar is more drama oriented and struggles more in the new environment.
It has the same plot where a group of people were transported into another world, however in Hai to Gensou, the group of people there had to team up if they were to survive while in Tate no Yuusha, the group of people there were competing against one another , but it was mostly with the one whom was an outcast that has to prove that he is nobody to mess with.
Both have the MC randomly transported in a world and being unsure of why.
Then they are told what they have to do in this world.
Both are set in similar places, with a city center with people selling items.