You really want traffic?
Or you want customers?
Don't do my mistake back then (10 years ago) I used to give WordPress development services.
I do got some traffic + clients and my website gave me few leads.
But if you real look for clients I think your best bet is other social platforms like LinkedIn, Facebook and maybe Reddit can work.
If you wanna grind them with SEO try to target traffic with a good content strategy that will target what your clients are looking for.
Create better blog posts and in bottom link back to your selling point.
But if you really want customers you should outreach them with good unique offer (emails,LinkedIn,Discord,Telegram)
Add also a portfolio for your site.