Any ideas what to buy now and keep for longer ? (1-3yrs) ?

bitcoin and ethereum is the answer
just hold both crypto for the safest investments in long term
you can hold the others too, but you should know everything about the coins, to minimize the risk from your investments
holding bitcoin and ethereum is good and safe, their volume is very large. when we want to hold the altcoin, we must understand it as a whole. including concepts. team. market roadmap etc. the reason why we have to hold must also be clear