ATtiny85 Arduino Programming with Sparkfun Tiny Programmer on a Mac – The Book of Jason
A simple and inexpensive way to program new AVR ATtiny214, ATtiny414, ATtiny814 and Atmega microcontrollers using by the UPDI interface - ООО "НПК "Спецтехнаука"
ATtiny microcontroller comparison chart - Wikipedia
Amazon.com: Yoneix USB ISP Programmer for AVR ATMega ATTiny 51 AVR Board ISP Downloader(1PCS) : Electronics
Getting Started With the ATtiny85: The Little Microcontroller That Could – Embedded Thoughts
1 pcs x ATTINY817 XPRO ATtiny817 Xplained Pro ATtiny AVR MCU 8 Bit Embedded Evaluation Board|Integrated Circuits| - AliExpress
MRP11 - Multi AVR Adapter (supports ATMEL ATmega and ATtiny series)
ATtiny85 Powered High Voltage AVR Programmer - Hackster.io