Not sure when I will write another article, but the articles I wrote thus far are:
- Base Pikachu artwork card variations
- 1st edition stamp variations - ‘Let’s Iron It Out!’
- Japanese Teach/Tryout Sets
- Protostoise - putting the puzzle pieces together
As for some other semi-articles, as in more an overview of useful lists/information:
- List of all TCG cards that exist for a specific Pokémon
- National Index including all Forms & Shiny Pokémon (W.I.P.)
- [W.I.P.] Complete Yu-Gi-Oh Rarity Guide
- Sets and Languages: Compilation overview list
- Overview of all (~1500) Pikachu TCG cards up to Feb. 27th, 2021 (25th Pokémon Day) including their release information: Quuador’s Collection
Greetz,
Quuador