Ron Weasley and Uryu Ishida might be paired. Ron has his loyalty and combat skills in the wizarding world, and Uryu is a skilled Quincy in 'Bleach'. They both have a bit of an underdog - ish quality in their own series at times. They could start off as rivals, perhaps due to their different approaches to combat (magic vs. Quincy powers), but then end up as allies when facing a greater threat that requires both their skills.
Harry Potter and Ichigo Kurosaki are very likely to be paired. They are both the main protagonists in their respective series. Harry has his strong sense of justice and magical powers, and Ichigo has his determination and Soul Reaper abilities. They could form a great partnership to fight against common enemies.
Hermione Granger and Rukia Kuchiki could be an interesting pair. Hermione's intelligence and thirst for knowledge would pair well with Rukia's experience in the Soul Society. They could exchange knowledge about magic (in the case of Hermione) and the ways of the Soul Reapers (in the case of Rukia). Maybe they would work together to solve some mystery that spans both universes.
A practical answer is Chapter 76, because it turns the idea into a concrete scene. The chapter opens with Thinking of this, the aunt repeatedly praised, "Girl, hearing your words..., adds pressure through Leaving aside whether what she's made is good or not, just taking these..., and ends on Soon.
Chapter 53 is the strongest chapter-level answer because it starts from Night had fallen over Chixia Village, eerily void of any human sounds. and follows through on Wait, did this kid accidentally fall into the water?] [Help, this camera....
A practical answer is Chapter 55, because it turns the idea into a concrete scene. The chapter opens with Su Yinwan hadn't expected that, in just one day, Jiang Li's reputation had..., adds pressure through This person was even a top gaming streamer with tens of millions of fans,..., and ends on.
The best chapter pointer here is Chapter 54, "Acting Righteously Hits the Trending List Again!". It opens with Five minutes later, the people of Chixia Village, who had received the... and closes on She was also polite and friendly, and to top it off, she was good-looking,....
Chapter 28 is the strongest chapter-level answer because it starts from The next evening, Jiang Yan drove home seething with rage. and follows through on Lili then kicked his knee hard..
The best chapter pointer here is Chapter 55, "I Can Prove Everything Miss Jiang Said Is True!". It opens with Su Yinwan hadn't expected that, in just one day, Jiang Li's reputation had... and closes on He Yun's fans were immediately displeased..
The best chapter pointer here is Chapter 86, "If you don't welcome me, why should I stay?". It opens with After over an hour of fuss, it was finally time to eat. and closes on But then her expression became resolute and arrogant..
A practical answer is Chapter 64, because it turns the idea into a concrete scene. The chapter opens with Chixia Village lay in tranquil slumber., adds pressure through Is there really a need to put her down like this?, and ends on He'd been a host for so many years; he was used to it..
If you want the clearest chapter reference, go to Chapter 79. Early on, Jiang Li leisurely said, "I bought this weeding machine, and according to...; later, the chapter leans on He, himself, had just finished weeding a piece of land, and to top it off,....
Chapter 110 is the strongest chapter-level answer because it starts from Jiang Li, carrying a wooden basin, walked over to the well. and follows through on My parents died, and fortunately, Daddy found and took me in..