How to create PGN without chessbase?

Lichess Study: The Only Guide You'll Ever Need - The School Of Rook

PGN Chess Editor Trial Version - Apps on Google Play

chess analysis Archives - DecodeChess

Chess

Доска анализа и редактор PGN - Chess.com

GitHub - c4akarl/ChessForAll: Play chess against an engine or use the program as a PGN editor/-viewer (OS Android).

GitHub - brianyu28/holyoke: A modern chess PGN editor for macOS, iOS, and iPadOS

Chess PGN Master - Apps on Google Play

Analysis Board

How do authors of chess books create those miniature chess boards and insert them in pages as a visual aid? - Quora