Easiest way is to pay someone else to scan them. If its only a couple of hundred slides, then that’s probably cheaper than buying a decent scanner.
If you want to do it yourself, I recommend a Plustek Opticfilm slide scanner. Costs about £200, depending on the model. It is good quality, decent resolution etc, though it can be rather slow. And even more time consuming if you want to tweak each image. But if its a nice slide, in good condition, you can get great results.
For software, I recommend Vuescan. I found its a lot nicer and easier to use than the software included with the scanner.