As you're now 18 months on from July 2018, so have probably moved onto other things... Please consider approaching some academic institutions, or some medical

As you're now 18 months on from July 2018, so have probably moved onto other things... Please consider approaching some academic institutions, or some medical professional associations to see if they would be interested. While I doubt any will have any money to pay you, they will almost certainly be able to host this for free, probably indefinitely. You just need to find one interested researcher. It's hard to tell exactly what it is you made, but informative, interactive, visualisation tools can have really powerful public health effects if marketed well.