Off the top of my head:
All Divisions in England, France, Germany, Spain, Netherlands, Belgium, Scotland, Italy, Portugal and top 2 Divisions in Brazil and Argentina all playable. A few others (Scandinavian Countries and A few South American/African) on View only
Medium Database
Gives me about 90,000+ Players and is fine for me speed-wise. Was a bit of a slog on my Old PC, but is fine 8 Years in the future on my new one.