Bird kabobs, seagrass mats, vine balls, and shredded paper (inside toys) are my bird's favorites. Other than that, cardboard, finger traps, vine chains/stars/other shapes, sola wood, and palm flowers are also great toys.

There's also packs of toys like this finger trap one and this, but they have potentially unsafe hangers. In my experience, I would stay away from harder woods like pine and balsa because cockatiels have weaker beaks, so they're more drawn to softer, more shreddable objects.

Try this one instead!! It’s like that one but it’s all natural, i got this and my birds really liked it- I’d just remove the bells

https://www.amazon.com/dp/B08D77PP1Q?psc=1&ref_=cm_sw_r_apin_ct_83T2WBBTC1CKPNCA23XV

And also this, these are shredding toys, if remove the ropes though and replace them with natural ropes

https://www.amazon.com/dp/B08QGYCMVN?psc=1&ref_=cm_sw_r_apin_ct_9TENVT7D8NK40S278ZGT