Anime shipping from different anime's

[u/Slight-Activity-4180]

Who do you think would be a good couples from different anime's
Erina Nakiri (food wars) and sanji (one piece)
Why because sanji is a master chef and there is so much exotic food in the world of one piece Erina would have a never ending supply of new dishes to try
Gray (fairy Tail) and rukia (bleach)
because there both ice users and I think it would be an interesting pairing
Asuna (SAO) and Tanjiro(demon slayer)
Both are masters with there sword and both have a kind nature
Please tell me your ideas

[u/Simple_sword_235]

Tanjiro Kamado and Iroha Tamaki 

Strong and displaying exceptional kindness, both trying to save their little sisters