Do not take that job. That’s like asking someone to remodel your kitchen without coming inside. Theoretically you could improve things with backlinks, but that’s a whole other rabbit hole. Avoid SEO in general, it’s very complicated, labor intensive, and changing by the minute at this point. It’s also very old, similar to websites, but I would recommend going for web design clients as it is the foundation. Focus on AI if you can. Reviews are also good. Both are new and can be automated. Sell systems not services.