I just got this one from Amazon and it’s great

One MissionX Protective Silicone... https://www.amazon.com/dp/B08D3KSGD5?ref=ppx_pop_mob_ap_share

I recently picked up two on Amazon for some 26oz ramblers. Just make sure you select the correct size.

Link: https://www.amazon.com/gp/aw/d/B08D3KSGD5/ref=cm_cr_srp_mb_bdcrb_top?ie=UTF8