Try some sweet flavours such as tutti fruity, strawberry and pineapple and some savoury flavours such as halibut, cheese and green lipped mussell.
But also try baits that other people aren't using such as hair rigged cockles (my favourite bait ever), maggots and sweetcorn.
variation is the key...ask other anglers what they use....those that are secretive really aren't worth talking too.
A good loose feed is worth going with too....lots of cooked hemp, soaked bird seed, vitalin, corn all with a good groundbait mix.
Good luck