Isekai is the most crowded genre in anime, which makes it the hardest to shop. For every Re:Zero there are a dozen forgettable "trapped in a game" clones. So instead of another list padded with filler, here's the ranked shortlist that holds up on SenpaiRanks's dual-axis board — broadly loved and good on a rewatch — with where to watch each one.
Quick answer
According to SenpaiRanks, the top isekai to start with right now are Re:Zero -Starting Life in Another World- (Consensus 8.22), Mushoku Tensei: Jobless Reincarnation (8.03), and That Time I Got Reincarnated as a Slime (7.99). All three stream on Crunchyroll. Below is the full ranked shortlist, each with its studio, premiere year, and streaming home. Unlike MyAnimeList's single number, every entry here carries both a Consensus and a Quality score — so you can tell the crowd-pleasers from the ones that actually hold up.
The ranked list
1. Re:Zero -Starting Life in Another World- — Consensus 8.22
Studio White Fox, 2016. The high-water mark of modern isekai: Subaru dies, resets, and pays for every mistake in full. Streaming on Crunchyroll, with a fourth season now on the calendar.
2. Mushoku Tensei: Jobless Reincarnation — Consensus 8.03
Studio Bind, 2021. The genre's benchmark for craft — a slow, gorgeously animated coming-of-age that takes its world seriously. Streaming on Crunchyroll. The current season is covered in our Mushoku Tensei III where-to-watch guide.
3. That Time I Got Reincarnated as a Slime — Consensus 7.99
Eight Bit, 2018. Nation-building comfort-watch isekai with a likable overpowered lead. Streaming on Crunchyroll.
4. KonoSuba: God's Blessing on This Wonderful World! — Consensus 7.88
Studio Deen, 2016. The definitive isekai comedy — a parody that outlasted most of what it was mocking. Streaming on Crunchyroll.
5. The Rising of the Shield Hero — Consensus 7.88
Kinema Citrus, 2019. A revenge-tinged underdog story with one of the genre's stickiest first cours. Streaming on Crunchyroll.
6. Ascendance of a Bookworm — Consensus 7.83
Ajia-do, 2019. The thinking reader's isekai — no power fantasy, just a book-lover rebuilding printing from scratch. Streaming on Crunchyroll. Its current season is broken down in our Ascendance of a Bookworm guide.
7. Overlord — Consensus 7.81
Madhouse, 2015. Villain-protagonist isekai done right — Ainz is stranded in his own MMO and slowly becomes the monster he cosplays. Streaming on Crunchyroll. More in our Overlord watch guide.
8. Reincarnated as a Sword — Consensus 7.50
C2C, 2022. A sword and the cat-girl who wields it — a surprisingly warm buddy story. Streaming on Crunchyroll, with a second season on the way.
What to watch for this season
The genre isn't slowing down. A Returner's Magic Should Be Special, The Iceblade Sorcerer Shall Rule the World, and Berserk of Gluttony all have new seasons dated — see our guides for A Returner's Magic, The Iceblade Sorcerer, and Berserk of Gluttony. If you'd rather branch out, the best shonen anime and best seinen anime boards are the neighboring shelves.
Frequently asked questions
Q: What is the best isekai anime?
A: On SenpaiRanks, Re:Zero -Starting Life in Another World- tops the isekai board with a Consensus score of 8.22, followed by Mushoku Tensei: Jobless Reincarnation and That Time I Got Reincarnated as a Slime.
Q: Where can I watch the top isekai anime?
A: The entire top of this list — Re:Zero, Mushoku Tensei, Slime, KonoSuba, Shield Hero, Ascendance, Overlord, and Reincarnated as a Sword — streams on Crunchyroll.
Q: What's a good isekai for someone who dislikes power fantasies?
A: Ascendance of a Bookworm. There's no overpowered hero — just a book-lover rebuilding craft and industry from the ground up, which is why it ranks a 7.83 despite a slow start.
Q: Is Re:Zero really better than Mushoku Tensei?
A: On the Consensus axis, yes — Re:Zero sits at 8.22 to Mushoku Tensei's 8.03. But they win on different strengths; rate both on SenpaiRanks and see where your taste lands versus the crowd.
Q: How does SenpaiRanks rank isekai differently from MyAnimeList?
A: Every show carries two scores — Consensus (how broadly liked) and Quality (how well it holds up) — instead of one blended average, so you can separate the crowd-pleasers from the genuine standouts.