Try to get sextoys with safe material such as
silicone, glass or stainless steel.
Avoid like pest the TPE/TPR/Jelly/PVC material.
If it states : platic, it's the same.
To clean, you need to use soap and lukewarm water.
To sanitize, if your material is a safe one (and it should be in order to avoid any infection), you can sanitize it by boiling in for 5/10 minutes or put it in a dishwasher. You can also use a 10% diluted bleach solution or 70% isopropyl alcohol.
Cleary, on amazon, you have a lot of sextoy that aren't safe, same for temu or such, please avoid them.
I didn't reviewed a lot of anal toys yet but you can read some reviews here :
https://foxypleasurereviews.com/reviews/type/anal/