@ZenHomes0 We rent out an entire detached apartment (a large 1 bdrm studio), not a house. The checkbox for that is the same as Entire House. We actually don't hit 100% very often, and to be honest, prefer not to. We like to have 1 or 2 days a month end up empty so we can make repairs, deep clean, etc.
We don't decline shorter bookings to wait for longer ones. If the guest meets our criteria, we approve the booking. We do have varied minimums -- our default is 2 days, but for certain weekends or even weeks when there are special events in the area, we'll set a 3-day or longer min. (For example, SXSW, which lasts roughly 2.5 weeks in March each year, warrants higher rates (2X our usual) and 5-7 day minimums.)
We check our calendar every day and may slightly fiddle our rates for certain days. We do look at AirBnB's price recommendations but we don't follow them. Contrary to a lot of complaints I hear about their reco's always being much too low, in our case they almost always suggest rates that are too high. We don't change our price up or down to match their recommendations, we just use them to get a feel for how rentals are going in our area. One thing I've noticed about their numbers is that they don't reflect any awareness of special events that are 2-6 months in the future. In those cases, they always think our rates are way too high.
Also, if things seem to be booking slower than normal 6-8 weeks out, we might drop the rates by $5-10 for awhile, attract enough requests to make us feel safe, and then put the rates back up to normal. Also, if we have 2-3 "isolated" days (with bookings on either side of them) that haven't booked and are growing near, we'll drop their rate a bit to fill that hole.
There's another little trick that I've mentioned in the CC before. If we end up with a single open day between two bookings, that day, because of our default 2-night minimum, is essentially unbookable. So what we do is message the guests on either side of that day and offer it to them at a greatly lowered rate. Most of those guests have fixed travel plans and can't use an added day, but about 20% of the time, one of the guests will accept the offer. Doesn't hurt to ask.
Good luck!