DS2 has a take home pay of c. £1500 and very little in the way of outgoings.
He pays me £200, which whilst it's not "enough" in terms of what it would cost him to live elsewhere, it's probably more than it costs me for him to live here (he eats breakfast and lunch at work) and therefore, I'm not comfortable taking more.
He pays for his own phone and Netflix/other streaming subscriptions
He's supposedly learning to drive but not very motivated, he doesn't really need a car and even if he was ready you can't book a test atm.
He pays 10% into the company pension scheme
He pays £200 pm into a homebuyers ISA
He pays £200 pm in to a regular savings account
It's so hard to advise because whatever he does there's no interest on any of these accounts. My only suggestion is premium bonds, which I know aren't always considered a good option but at least there's a bit of fun/possibility
He doesn't really want anything tied up too much in case he does want that car or (eventually) house.