[d0ntjump]

I've used a service by the name of 'Helix' for years now - very reliable! It's the only one I've ever used. It's owned by the same individuals who run 'Grams'.

I've used Helix once and I wasn't super impressed. I don't like their minimum amount of BTC required to mix. I usually need to send small amounts of BTC to VPN providers. I use torwallet for this sort of thing. They have a variety of features and I've never had an issue/problem with them yet. They also offer their services on the onion if you prefer it.