Highly recommend bird kabobs, all the birds I have go crazy for them. Other than that, this is a fun toy my birds spent a lot of time destroying, my birds love seagrass mats, and whatever this toy is (my budgies love picking the things out of the basket)
Shredded paper, seagrass mats, finger traps, soft wood like yucca and sola, cardboard, wicker and vine shapes (like stars, balls, chains, etc), palm flowers, and loofah are all great things to look for bird toys.
I recommend the brands bonka bird toys and super bird creations, if you want specific toy recommendations and use Amazon, my birds really liked this, this (although I took all the cotton off), this, this, and, probably the best toy of all, bird kabobs.