Terrier owner has a lot of authority and viewership in the niche of the Jack Russell Terrier because I own one, made a lot of video content as well.
This specific dog breed, I still have not capped out or even close. In fact, I stopped writing posts about 3 months ago due to time invested in another project.
For the immediate future after purchase, you should still see growth because a decent % of the 151 posts are not even 8 months old at this time and growing.
I would immediately start with finishing the Jack Russell Niche.
Breeder information, diet, and more training-related articles will bring in the heaviest amount of traffic.
This is a tough dog to get a handle on and for some reason, everyone, including myself adopts them.
These posts can average 1000+ page views per month.
Also, focus on some seasonal-type posts for this dog such as holiday gifts, etc.
Jack Russell's are typically bred to be ready for adoption in the late fall so you naturally see a larger amount of traffic from October-March because of this.
Good opportunity for easy affiliate income. I just never had the time to do it.
Following this, I would finish the areas of the Bull Terrier dog breed and the Pitbull Terrier.
They have a good base of 20+ articles and several driving traffic.
Each dog breed could easily be 200-300 posts with good traffic so take what's already pre-built and run with it.
And lastly, focus heavily on mixed breeds of the Jack Russell.
I started this right before time constraints got too difficult and this is a heavy traffic spot.
I also didn't put much time at all into how my ads were placed on the website (I'm terrible at this) and didn't spend a lot of time optimizing affiliate opportunities.
In all reality, I wrote a bunch of a post, started Ezoic late, and threw in some links.
Didn't really get a chance to fully exploit the site as I could.
Do these things first and grow into other breeds of the Terrier after is my #1 advice to grow this website.
And perhaps, update some of the oldest content.