The [r/eos](https://www.reddit.com/r/eos/) subreddit has [a sticky post](https://www.reddit.com/r/eos/comments/8rmbw4/everything_eos_click_here_to_get_started/) where they list several block explorers:

> Block Explorers:
> 
>    - [EOS Tracker](https://eostracker.io/)
> 
>    - [EOSPark](https://eospark.com/)
> 
>    - [eosflare](https://eosflare.io/)
> 
>    - [EOSQuery](https://eosquery.com/)