I don’t recommend using slime or fix a flat (or anything like that). I’ve worked in a tire shop before, and that stuff gets everywhere. The inside of your rims will be covered in it.

It looks like the Tesla repair kit also uses a canned sealant. I’ve heard NHTSA no longer recommends plugs, but that’s what I’d go with. Here’s from a quick search on Amazon: https://www.amazon.com/dp/B002I52RG0/ref=cm_sw_r_cp_api_glt_fabc_DWNQFVGSMN05G8YR4RDX