There are several alternatives to Google Maps that you can use to integrate maps into your website. Each of these services has its own set of features, and the best one for you will depend on your specific needs and preferences. Here are a few popular ones:

1. OpenStreetMap (OSM): OpenStreetMap is a free, editable map of the world that is often considered the Wikipedia of maps. It’s a collaborative project that allows anyone to contribute and update the mapping data. There are several libraries and tools that can help you integrate OSM into your website, such as Leaflet, a lightweight open-source library designed specifically for embedding real-time maps on web pages.
2. Mapbox: Mapbox is a powerful, customizable mapping tool that uses data from OpenStreetMap. It allows a high level of customization, offering beautiful map designs and visualizations. It’s quite versatile, allowing developers to create interactive, feature-rich maps and applications with its SDKs and APIs.
3. Bing Maps: Microsoft’s Bing Maps platform provides a variety of map data with less usage restrictions compared to Google Maps. It also supports features like StreetView and 3D maps in many areas. They offer a REST API, as well as several SDKs for web and mobile development.
4. HERE Technologies: Previously known as Nokia Map, HERE offers mapping services and location data. It provides tools for map visualization, location-based services, and spatial analytics. Developers can use HERE maps for applications requiring geographic context.
5. TomTom: Known for their GPS technology, TomTom also offers a mapping platform with an API that you can integrate into your website. They provide services for map display, search, and navigation among other features.
6. MapQuest: An older, yet still a robust service that provides various map-related functionalities, including an embeddable map, directions, and local business search.
7. Esri ArcGIS: More than a simple map embedding service, Esri’s ArcGIS platform is a comprehensive suite for geographic information system (GIS) applications, including powerful tools for spatial analysis, data management, and mapping.

When choosing an alternative, consider factors like cost (many of these services operate on a freemium model), the range and style of map data you require, the level of detail or customization you need, how you plan to handle user data, and specific features you require (e.g., offline access, routing capabilities, real-time updates, etc.). Also, always check their terms of service to ensure compliance with usage policies, especially if your website has commercial purposes.