I've put up a post on my blog (http://mojobob.blogspot.com/2020/04/easy-colour-correction-for.html) about a very quick and easy method for correcting a colour cast in your photos, to get from this.....
(https://1.bp.blogspot.com/-TKetRWcZSvo/XofWqSVTc0I/AAAAAAAAOFI/BsNsC-vfQFIlmBJxsce46krMuZjaYbGWwCLcBGAsYHQ/s1600/2020-04-04-ColourBalance-001.jpg)
.....to this, in just a couple of minutes.
(https://1.bp.blogspot.com/-lepMxHgLpVM/XofWrYtL-iI/AAAAAAAAOFQ/r7Mbc6BlSxAlEs2ByKclPSQ9-vodd-k-ACLcBGAsYHQ/s1600/2020-04-04-ColourBalance-004.jpg)
The software I'm using is Photoshop, but there are equivalents in GIMP or Affinity Photo that will do exactly the same thing.
Note that this doesn't deal with any lighting issues other than a colour cast.