I assume that 'electronic drawing pad' = 'graphics tablet' here.
ExpertReviews.co.uk is actually the same company (and uses the same rigorous testing) as the one which publishes both Computer Act!ve and PC Pro magazines. I've got complete faith in their reviews. So I suggest having a look at this webpage:
https://www.expertreviews.co.uk/tablets/1411992/best-graphics-tablet
Graphics tablets can be used with photo editing software (such as Photoshop or Gimp) as well as with painting programs (such as Corel Painter) and drawing ones (such as Autodesk Sketchbook). See here:
https://www.xp-pen.com/forum-225.html
and/or here:
https://www.parblo.com/blogs/guides/7-best-software-for-drawing-tablets
It should be noted though that many artists and designers now prefer to use tablets (such as iPads or Android devices) in preference to computers with graphics tablets, as the former allows a user to draw directly onto a screen, whereas using a graphics tablet requires one to look up at a monitor while drawing on a desk-based surface.