I would never have thought to add celery but that's a good tuna crunch.
I think I've only ever had tuna, (huge amount of) mayo, finely chopped peppers and red onions, salt, pepper.
Yours sounds better.
Discussion
I am pretty simple when it comes to tuna salad
Mayo cornichons capers salt pepper mix well and then eat with pickled red onion
Yeah mine ends up with a good crunch. Sometimes I'll throw some sweet peppers in if I have some around, that's a good mix too 🤝