Welcome to the world of entrepreneurship. Creating a problem-solving website can be a lucrative idea as long as you identify a common or niche problem that your target market faces. Here are a few suggestions:

1. Online Marketplace: You can build a customized online marketplace that caters to a specific niche such as handmade goods, health supplements or organic products. This can be a platform for sellers and buyers to connect and exchange services or products.

2. Job/Service Platform: You can create a platform that helps to connect freelancers or service providers with clients who need their services. This can include tutoring, article writing, data entry and more.

3. Consultancy Website: You can provide consultancy services online to individuals or businesses in areas such as financial planning, leadership or management consulting.

4. Educational Resources: You can create a website that provides educational resources such as tutorials, webinars or articles in specific niches such as cooking, coding or DIY projects.

5. Travel Itinerary Planner: You can help people in planning their travel itineraries with a customized planner that suggests destinations, accommodations, and budget options.

I hope you find these suggestions helpful, and I wish you the best of luck on your entrepreneurial journey!