I've used a "Primefilm" 35mm scanner which will do black and white negatives and colour positives and negatives. You can then upload the visuals to your photo programme on your computer and do the enhancement bit to correct the errors of 40 years ago !
I got change out of £150 from Jessops several years so they'll almost certainly be cheaper or a lot better quality today.
It's great fun, I'm absolutely amazed at the definition of some of my 60's
B & W 35mm negatives - some air-to-ground photos can be zoomed in to read the number plates of cars on the road ! Good luck !