I can't think of anything they hate and won't grow near. There might be some that can out compete/smother out blackberries to an extent. Though most of those are also supposed to be so good at it they can be problems in and of themselves.

Get some tough leather gloves with long cuffs and eye protection and pull them. Then as soon as they sprout, pull them again on an ongoing basis. Plants need leaves to generated energy to grow, and if you continually remove all leaves as soon as they sprout the plants will eventually run out of energy. If they are initially too large and tangled to get to the plant bases, they can be cut with a scythe or string trimmer or brush cutter and then the tops removed from the area with a rake so that you can reach the bases. With larger or woodier plants, using a pair of adjustable pliers can help you grab them for two-handed pulling.

besides black walnut trees... i am hard pressed to think of any plant that will dissuade another plant to much of any extent ...

and even those.. much of the info is highly exaggerated ... imo ../..

wild berries are called bramble ... and short of a bulldozer ..there is no easy way to get rid of them.. short of hard .. persistent work ...

my go to.. if there is a large patch.. would probably be a spray... properly used ...

some suggestions at the link below ...

ken

https://duckduckgo.com/?q=bramble+removal&t=ffcm&ia=about

im not sure about the goat suggestion ... lol ...

Heavy canvas after cutting them back.