If you are really looking for peace, an ETF might be a good compromise. It doesn't necessarily have to be the All World or World. You can also use one on the S&P 500 or even NASDAQ.
Warrants can be used to make greater returns and if you buy ETF shares to gain from them, it's like adding a little leverage to your ETF portfolio. However, this doesn't make sense for most people because there are statistics that say that over 88% of people who trade warrants make losses. So this is a very personal question.
As far as your selection of individual stocks is concerned, I have to admit. They are very interesting and have a lot of momentum, and there are probably one or two tenbaggers among them. But they are not established companies. So for someone who doesn't want to deal with them, this might not be the right choice.
So warrants are not exactly suitable for reducing the time required. Try simply leaving an 8-share long for a month 😜 I've actually picked out the individual stocks once, which of course takes a little less time (thanks to this community) and I want to hold them for at least a year, except for Ondas (I'm assuming a lot of momentum and less substance with Ondas).