Multipath is not an issue if you have a strong signal.
go higher.
My old RF technician friend (unfortunately passed many years ago) taught me that it is the ratio of the direct signal strength as received vs. reflected signal strength as received that matters most, given that the received signal is strong enough for good reception (barring strong multipath) to begin with. This agrees with observations:
I can take my 12v tv to open space 35 miles from the transmitter of the closest station giving me trouble, and pick it up nicely on rabbit ears on top of the tv. (Yes, the terrain is fairly flat.) At home I am <7 miles away from the transmitter (impossible to not be a much stronger rf field than the “35 mile” location) with a good antenna 30 feet up, and the signal pixelates.
For that “close” station, sometimes I actually get LESS pixelation with a temporary antenna on my ground floor, than I do off the outside antenna. But, then I can’t get the more distant stations.
Put another way, if the reflected signal is as strong as the direct signal, and both are strong, if I go up 10 ft., both will be stronger by the same amount, and the tuner still has to try to discriminate between the two.
I’m sure that if I went significantly higher than the silos, I’d have more direct signal and less multipath. But, that’d really be expensive.