impy

Since we don't know yet which blocks do what regarding completing the main story & DLC contents i've gathered this block folder to help you.
Got those blocks from my female trainer save and tested with a male trainer save and it works without any issues (yet) 
 
What does it do?
Completes Main Game & BOTH DLC; Replaces TitleScreen Poké (Hall of Fame) with 6 Eevees; What blocks it doesn't have?
Fashion block, TrainerCard Block & Misc Block (this work with both Male & Female trainers); Game language block (works with all languages); Party & box related blocks (keeps your pokémon untouched); Current Coordinates block (stay where you currently are); Items Block (keeps your bag the same); FriendLeagueCard Block (keep your friends cards);  
How to use?
Open your current save with PKHeX; Extract the .zip you have downloaded from this page to a new empty folder; On PKHeX click on the SAV tab, then click on the Block Data button; On the new window that openned, click on the Import Blocks From Folder button, select the folder from Step 2 then confirm; Export your save by clicking File on the menu bar, then Export Save > Export Main option; Inject the new main file you've saved in your game using Checkpoint, or use it in Yuzu;

Enjoy, this save file contains:
Both DLC story completed!; All 3 completed Pokédex (Galar, Isle of Armor & Crown Tundra); All items 995 (Garbage items removed from this save); No Dynamax legendaries caught; All Fashion items unlocked; Maxed-out Watts, Money & BP;