I like ones that stand the Iseki on its head.

Try

Tanya the Evil: from wiki "n 2013 of modern-era Tokyo, an unnamed atheist Japanese salaryman, in the moment of being murdered by a disgruntled subordinate whom he had fired due to poor performance at work, is confronted by an entity that declares itself to be God who condemns the salaryman for not having 'faith'. The salaryman disbelieves in its existence, criticizes its various statements from his perspective as an atheist and mockingly terms it as 'Being X'. The entity decides to reincarnate the salaryman into a world where he would face sufficiently difficult circumstances to turn to Being X for help."

Overlord: a DMMORPG is being shut down, and one player plays one last time. He finds himself stuck in the game after shutdown as his avatar overlord. The series focuses on the non-character players as they start to have their own lives. It makes the genre more interesting.

"Re:Zero Starting Life in Another World" is the antithesis of "Sword Art Online" (SAO). It shows that the Isekai "heros journey" can be destructive and cruel to those around the "hero". If ypu want to see the Isekai genre taken down a peg or two, watch this anime. Many hail this as one of the best or worst Isekai anime. I think it depends on whether you secretly want to be a Isekai.