Existe-t-il un robinet adapté à cet évier ?

Le robinet noir suivant s'adapte à cette lavabo: https://fr.homary.com/item/support-mural-cascade-noir-mat-avec-poigne-levier-unique-en-laiton-massif-12842.html

Can you recommend bathroom mirrors that fit this sink?

Yes, please have a look at this link: https://www.homary.com/item/modern-oval-20-x-28-wall-mounted-led-frameless-bathroom-mirror-antifog-41193.html

Do you have pop-up drain which fit this sink?

Yes, you can have a look at this link: https://www.homary.com/item/gold-finished-popup-drain-assembly-without-overflow-for-bathroom-vessel-vanity-sink-10855.html

Will it be packaged well? I worry about that it may be broken.

They will be packaged well, please don't worry.

What is the weight of this sink?

The weight of the sink is 20.5 lb.

Can you recommend faucets that fit the sink?

Yes, please have a look at this link: https://www.homary.com/item/taboro-single-handle-single-hole-waterfall-vessel-sink-faucet-in-polished-chrome-10993.html