Have you heard of APKpure.com ?
This tool only runs on desktop so I first have to add the UI stuff for it to run on smart phones then put it on such websites. And that's not currently on my todo list.
Hmm - I had it on a tablet a while ago and it was running (tablet finally died, and I haven't bothered to update with a new one ask yet).
Have you heard of f-droid.com ? This is another platform to distribute apps online and doesn't have the advertisements gouging your eyes like apkpure.com does)