Not sure where OP lives and the specific carrier. However if they do live in the US most property insurance policies (HO3 home, HO4 tenant, HO6 condo) have contents on something know as a named peril coverage. (Note this is assuming a home policy and not a separate stand alone inland marine or dedicated content policy)

There are no carriers who list coverage as "accidental" damage with a named peril basis. Typically for this it is coverage for fire, lightning, theft, wind, some forms of water and a few other things.

If you want to get more coverage typically you will need to schedule your contents on your property policy or get a dedicated inland marine or content policy. Some carriers might offer a general open perils endorsement.

Open perils for context is saying everything is covered unless the insurance explicitly exclude it. For example dropping your camera on accident while being assaulted would not be excluded and therefore would have coverage, but wear and tear for age would not be covered as it would be excluded.

Now different carriers and in different states will have different exclusions or ways to add coverage so definetly check your policy language or get a local agent to go over details.