As soon as you have two or three dozen, set them free. Take packs of five or so wolves to defensive stations and feed them well. You can have an open base, with wolves running free everywhere. That works great, attackers have no chance, but if you enjoy the sight of deer grazing on the lawn, you might want to keep the wolves between double fences.

An open base patrolled by wolves is ideal near the coast because a moat doesn't work close to shore and a big ugly wall obstructs the view of the sea. How are you going to enjoy a sunset from your deck?

Until I got wolves, I used roundpole fence which I patrolled. A lot. (I probably shouldn't have tried to fence off New Zealand.) When a fence was breached, workbenches were the immediate next target. They got destroyed so regularly, I finally put them inside wooden kiosks, which you can knock together pretty quick, and went to work sub-dividing Middle Earth into manageable regions.

Wolves and boars can be kept together in a dry moat or pen and they effectively defend one another. My inland base has boars, wolves grass and feed vegetables in the same moat, which I've made wider than normal, since nothing is getting across.

Boars will not root up growing veggies, nor ripe ones :( Just pull up the ripe vegetables with auto pickup off and leave them to feed the boars. If Valheim boars were more like Earth boars, you'd have to fence them away from the growing vegetables, but then you could just open the gate when the vegetables were ripe and the boars would harvest them for you.

Don't make a butcher knife. When it's slaughter time, toggle friendly fire and use the weapon you're skilling-up on.

Rotate your tires.