blind hand that always comes up.. how much do i bet?

i have been playing mostly $5 and $10 sngs for about a year now, and i am confident in my reading ability, but this hand seems to always come up and i never know how to play it.

mostly it will be 1-2 limpers into my big or small blind with we'll say K6, and the flop comes down 688. I feel like if i bet too much and get called, i always check fold the hand down, if i make a probing bet the fish call with nearly any two and i have no clue where im at, and if i check the flop i give 3 people a free shot on a draw heavy flop. i was just wondering how you guys played these flops?