Alternatives to Google Places Photos API?

I currently have a website which heavily relies on the Google Places Photo API. Users can scroll through a bunch of POIs for planning trips, as well as various other things. This can mean that each user could 50+ unique photos. I understand that it’s against ToS to cache these photos and reuse them. The API costs are too high to maintain a scalable solution, but no real competitors come close to the quality of Google. At this current rate I’ll probably have to cap my users on the amount the amount of requests they can make. Is there some work around that I’m missing? Thanks submitted by /u/TWJ32 [link] [留言]