I personally think Raku is a poor choice for new projects. I've never heard of anything relatively popular built with it. I get the feeling it's quite a hobbyist platform at this point.
I'd rather use Perl 5 than Raku at the moment. At least Perl 5 has CPAN which is still somewhat alive.
It's a bit like Julia, or Java 1.3, only without the marketing behind it. It's quite capable, definitely not a hobbyst project. Too slow and missing a lot of libraries though. And yes, Perl is still a better choice.
I'd rather use Perl 5 than Raku at the moment. At least Perl 5 has CPAN which is still somewhat alive.