RFID

125 KHz RFID keycards/keyfobs

HID Prox (Proxcard, ISOProx, ProxKey)
HID Indala (Motorola Indala)
EM400x, EM410x, EM420x
Noralsy (KCP3000)
Farpointe Pyramid
Keri (KC-10X, MT-10X, PKT-10X)
Kantech ioProx
DoorKing DKProx Low Range
CS-AWID
GR-AWID
KT-AWID
PW-AWID
Radio Key (SecuraKey RKKT-01, RKKT-02)
Viking
Visa2000
Schlage IBF iButton (RFID portion only)
T55x7 compatible keycard/keyfob

13.56 MHz RFID Keycards/keyfobs

HID iClass
HID iClass SE
Mifare Classic 1k/4k
Mifare Plus EV1
Mifare DESFire EV1/2
Mifare Ultralight
FeliCa (from Sony in Japan, primarily used in electronic money cards)
Farpointe Delta 

Other ranges

DoorKing DKProx (313 Mhz)
Farpointe Delta

Dangerous things implant

https://dangerousthings.com/chip-implants-101

VivoKey Spark
xEM
xNT
NExT
xBT
xDF2
flexNT
flexDF
flexDF2

NFC types:

NFC Type 1 - Based on NFC-A Technology -
NFC Type 2 - Based on NFC-A Technology - Defines certain ISO14443A tags as NFC compliant.
NFC Type 3 - Based on NFC-F Technology - Compatible to the Japanese Industrial Standard (JIS) X 6319-4.
NFC Type 4 - Based on NFC-A or NFC-B   - Defines certain ISO14443A tags as NFC compliant.
NFC Type 5 - Defines certain ISO15693  tags as NFC compliant

Protocols / Acronyms:

PCD: proximity coupling device (the card reader)
PICC: proximity integrated circuit card (the card)
NFC - Near Field Communication
NDEF - NFC Data Exchange Format 
TNEP - Tag NDEF Exchange Protocol 
SNEP - Simple NDEF Exchange Protocol 
EMC  - Europay, Mastercard, and Visa

ISO 14443 A - Range up to 10 cm

Higher operating power
Operates in the 13.56MHz 
Originally designed for contactless financial transactions
Ironically, became wildly popular for access control systems
Some but not all ISO14443A chips are also considered NFC compliant.
Still used for nearly all contactless payment standards and services including:
EMV cards, 
Apple Pay, 
Google Pay, 
Samsung Pay, 
etc. 

ISO 15693 - Range up to 100 cm

Lower operating power
Operates in the 13.56MHz 
Originally designed for access control systems
Popular use in inventory control (libraries ski pass and stuff). 

ISO 18000 - International standard

describes various other RFID technologies, 
each using a unique frequency range.