Well in manga (MangaFox) which I have been reading is of Spade Kingdom Raid Arc
Chapter 272
Edit: Since yuo asked about other Arcs I will list them out below:
- Magic Knights Entrance Arc - 10 chaps
- Dungeon Exploration Arc - 11 chaps
- Royal Capital Arc - 16 chaps
- Eye of the Midnight Sun Arc - 19 chaps
- Seabed Temple Arc - 17 chaps
- Witches' Forest Arc - 28 chaps
- Royal Knights Arc - 45 chaps
- Elf Reincarnation Arc - 81 chaps
- Heart Kingdom Joint Struggle Arc - 32 chaps
- Spade Kingdom Raid Arc - Still Ongoing ( I just mentioned till the latest one and not determining it as the final chapter in this Arc)