With the right pedal though, you will not drop out of the mix, especially as we're only taking low gain here. Many have a slight mid boost, making you stand out of the mix even more when engaged!
I don't agree with some of the suggestions here - Phat Phuk is more of a boost pedal, and the Ashdown Lomenzo sounds thin and unnatural to me.
For low gain OD, the DHA VT1, Xotic Bass BB, and Catalinbread SFT are my usual recommendations, but lately I have been favouring the tube drive model on the Soundblox OFD set to minimum gain, so much so I am thinking of unloading both of my SFTs!