Apple

Native solution coming up in next iOS.

Digital

Blinq

Blinq: Your Digital Business Card

blinq.me

https://blinq.me/

Covve

covve.com

https://covve.com/

offers also a NFC business card.

HiHello

Digital Business Cards | HiHello

hihello.me

https://www.hihello.me/

Mobilo

Mobilo - Digital Business Card for Teams

mobilocard.com

https://www.mobilocard.com/

NFC

Generic?

Don't use those services since you can easily create your own.
¹Go on Amazon and buy nfc cards (black ones look the best)
²Use services like LinkTree or Direct.me (best free option).
³Download NFC Tools app from whatever app store you use.
⁴Apply the link from your LinkTree or Direct.me onto the card.
⁵Edit your LinkTree or Direct.me to how you want it and that's it.

To test?

business-cards/nfc-generic.jpg

BLK Cards

NFC Digital Business Cards – BLK CARDS

blk.cards

https://blk.cards/

BLKCARDS.COM is the only one among the popular providers of NFC business cards to offer NFC-on-demand so no subscription, no profile to create, no signup, and no data stored on any server.
They have black NFC business cards in metal, wood and plastic and you can customize them with your name or your logo.
https://www.reddit.com/r/NFC/comments/130bwb3/best_nfc_business_cards_without_subscription/

Based out of Hong Kong though it seems, so shipping might be expensive.