The "yes but" or "no, and" (that JB mentions above) is kind of what I mean about tension being wrong or right. Either could work in a given scene, but one is probably better than the other for whatever reason.
I like what Jo says about tension being anticipation. So whatever you choose the reader will have some sense of anticipation. But it sounds like you have multiple options, but lack confidence about which one will move the story ahead in the best way. I'm actually facing something like that right now. I had been humming along, and I've just had a character come along to help my adversary who is in distress. But, I don't know yet whether that character is male or female, human or magical. I've written what I could (about 2 paragraphs) about the rescue without identifying the rescuer by the above traits (knowing that I'll revise it once I figure out the nature of the helper). There's so many ways it could go, and I've found that if I rush, if I try to push a decision, it's very counterproductive for me. So I set aside and work on something else, but I may spend some time writing to myself about the possibilities inherent in each option - or just thinking about it and waiting till the story becomes clear enough for me to pursue without stressing too much about it.)