Off the top of my head, thinking about what's worked and what hasn't so you get an idea for better "slug protected" results yourself in the future
Newly germinated Snap Dragons have thrived. Just flowering now.
Penstemon are looking good (but v late so haven't flowered as of yet)
Papaver came out and looked stunning and are just fading now.
Campanula is great, looking nice right now,
Astilbe, great,
Primroses lasted forever in spring and were great.
^ these are all perennial mind you.
Begonias are looking good
Potatoes, fine
Pumpkins fine
Strawberries, fine
Leeks, onions, chives all fine,
Peas, alright but a bit more manky than usual
What have been destroyed this year because of slugs:
All the Sunflowers,
Marigolds - hopeless
All of the Petunias,
All Cosmos
All fennel
All Courgette
All Cucamelon (first attempt at growing)
Verbena - gone
Dahlias -- gone 😭 dahlias are perennial too.
They even ate the freaking Rhubarb this year which is full of holes. They never touch that normally.
I slug pick all the fucking time but it's a total invasion this year, and (Stealth boast) I don't have time to go over the entire garden every night.