Landscape & Long range
Higher magnification is useful to see the detail in the distance,
for handheld use opt for a 12x50 or 12x60, this is the largest
you can use in practice without a tripod.
For tripod use, 15x70 or 20x80 binoculars are great, or a telescope
with magnification of 20+.
If you have a room or a balcony etc, with a fantastic view consider
some of the the larger models available, e.g. 22x100, 25x100,
P. S. You'll definitely need a high quality tripod to take advantage
of these larger models.