It's my go-to site for looking at what the mempool state is! Most of the time if you just use the estimation from your wallet software you should be fine, but

It's my go-to site for looking at what the mempool state is! Most of the time if you just use the estimation from your wallet software you should be fine, but if you like to craft crazy transactions to clean up a bunch of dust or like to save money, it's a great resource.