Rectified historical maps - Newbie help
Our state records office has just launched a fantastic online database for historical maps that have been rectified over modern maps, so that all the key landscape reference points line up correctly. I'm really excited by this, because I have a strong interest in understanding what the landscape where I live might have looked like at the time of colonisation, and these old maps offer some beautiful clues.
I have a project in mind and would like to draw my own map using the information contained in the local historical maps as a reference. Ideally, I'm hoping I can import the rectified maps into a mapping software so I can flick between the layers easily, and add my own layers to draw over the top (in a bit of an artistic way, not just scribbly MS Paint-esque lines that some mapping tools use).
However, I'm finding it quite difficult to figure out how to do this! I'm totally new to mapping and am trying to figure out if this is feasible or if I'm biting off more than I can chew. Do you have any advice or tips?
A bit of information:
> There are about 20 maps I'm interested in. I understand that I could just use Photoshop or similar and add them all as layers manually, but the idea of trying to line up the locations for this many historical maps feels a bit overwhelming. I would really like to take advantage of the fact that they're already rectified if possible.
> PROV Map Warper allows me to export rectified maps in a number of formats, including KML, GeoTIFF and PNG (see https://mapwarper.prov.vic.gov.au/maps/7180#Export\_tab).
> I've downloaded Google Earth Pro and can import and see all the maps easily in here, but can't draw over the top nicely.
> I started playing around with ScribbleMaps, but the KML files from PROV contain network links and ScribbleMaps isn't happy with these.
> I've also started playing with ArcGIS online, and have imported some KML files there, but when I add even one, it seems to freeze and I haven't even managed to get a visual of the imported layer.