Welcome to permies Aaron
Can you give a bit more info about your situation?
Basically repeating what William said...
I'm not familiar with any plant having the ability to actually raise
or lower ph,
and I can't imagine a plant changing the effects of things like limestone bedrock or an ancient bog.
Maybe someone who knows the science will come by with better info
I understand that compost/humus help greatly to 'buffer' ph,
enabling plants to access minerals that might have been locked up by a high/low ph.
I find pants are pretty flexible with ph, especially if the soil's well cared for
and I pretty much ignore 'plant X needs ph Y' type stuff.
That said, I won't bother trying to grow blueberries, which as far as I know are genuinely a bit finicky.
If my ph was a real challenge,
I'd probably make my growing decisions based around working with my natural ph,
rather than attempting to change it to suit the plants I'd decided on.