There is this new Bitcoin block explorer it just got to know about today. It also supports other notable chains. It has a nice UI. However, I can't rate as I have just known it only today, maybe someone can help rate it

https://3xpl.com/bitcoin
Tor Link: http://3xplor3rzajysy4j5fi3g3k27vivfcw75zjxdb2tg2wpz3i4cdiyhxyd.onion