I have chew toys for myself that I got off Amazon for like $15. It's pretty much just a chunk of food grade silicone, and it really helps with my need to chew. It's also on a necklace, so I can just spit it out if I need to.
Basic example is in the link
https://www.amazon.com/dp/B088T7Q739/ref=cm_sw_r_apan_i_3VFGQEFBVFJFA6P25XN1