Just got the shiny Meloetta
Here are some tips for anyone still working on it/wants to start.
1. Do Paldea dex first. There's a lot of overlap between what's in the base game and what's in the dlc, finishing the main dex first will fill your other dex's pretty decently.
2. Definitely have rare candies and EXP candies stocked.
3. Breed breed breed. It's much faster without RNG screwing with you.
Learned point 3 the hard way with Sunkern lol
4. Do Tera raids.
You get the trade evolutions significantly easier this way.
5. GTS any version exclusive you don't have. And if it doesn't have the Scarlet and Violet mark, use its offspring lol.
6. Snackworth's legendary Pokemon
do not count. You don't have to deal with that mess thankfully.
7. Walking Wake and Iron Leaves
don't count. Don't worry if you missed them.