Like everywhere just now mate, not a great deal happening. Things will pick up when sea heats up a bit and when crabs start to peel.
My advice to you would be use light gear, 2 or 3 hook flapper or 1 up 1 down rigs with size 2,1, or 1/0 hooks, fish or worm or both for bait.
You can catch flatties from any of the beaches in the area - Cocklawburn, Cheswick, Goswick, Spittal, Berwick all good beaches. Personally I prefer Spittal. Check it out at low tide and fish it on the flood. Or fish the estuary
You could also head up to Eyemouth and have a shot off the rocks, you never know what might turn up. Rockling, Sea Scorpion……