Language servers that support parsing Perl:

• marketplace.visualstudio.com/items?itemName=bscan.perlnavigator
  • github.com/bscan/PerlNavigator
• marketplace.visualstudio.com/items?itemName=richterger.perl
  • metacpan.org/pod/Perl::LanguageServer
  • github.com/richterger/Perl-LanguageServer
• metacpan.org/pod/PLS
  • github.com/FractalBoy/perl-language-server

Language servers that provide only limited features:

Some leverage the index that Exuberant Ctags generates:

• marketplace.visualstudio.com/items?itemName=cfgweb.vscode-perl
  • github.com/vscode-perl/vscode-perl