For some time now Adobe as offered a free website building tool to help you build your own online photo gallery. It is called Adobe Portfolio, and it is free with any subscription to the Creative Cloud. In my case I subscribe to the option that gives me Lightroom Classic, Lightroom, and Photoshop CC for ten dollars a month.
Adobe has added new features since they first introduced it. I played with it a couple of years ago, but never really got into it. So today I began my second venture. I have put up a very basic gallery so far. There are plenty of additional elements I can and will in time.
But my first attempt at least allows the viewer an easy way to view the few pictures I have uploaded so far. It is easy to upload your photos from Lightroom. You just put your photos in a Lightroom Album and upload the pictures from there. If you are a Lightroom Classic user, you must sync the desired Collection with Lightroom where that Collection becomes an Album. You can also just upload pictures directly from your computer.
Here is the URL for Adobe Portfolio https://portfolio.adobe.com/
Here is the link to my first simple gallery. https://donstouder.myportfolio.com/