A friend I work closely with is an independent mortgage advisor and he's busier than ever as well. These things are usually bollocks because they base it on simple tasks that can be automated and extrapolate that to every case.There are more lawyers in the UK now than at any other time - with Brexit looming there will be even more I suspect.
Financial Planners are on the list too - Well I have been an Independent Financial Adviser for more than 25 years & we are busier than ever !
I read a few years ago that accountants will not be needed due to software etc. It's utter rubbish as 90% of my job is dealing with people and their personal situations. It's nothing that software could do.
The same with my mate. Sure people can use websites to find the best deal for their mortgage. But if they are self employed, have various income streams and own assets etc then they need a professional advisor who will take all the stress out of it and find the best lender for their particular set of circumstances.