The best way to attract talent is to play the long-game. To nurture people, help be connective tissue by introducing people thoughtfully and give as much as possible.
By working alongside others can give you a good idea of what the person values and cultivating a great working relationship is one way to stay connected. People will remember you and if you want them to join you it will help if they have pleasant emotional memories of working with you.
Other ways are genuine interests outside of traditional networking events. I’m not sure making yourself an instrument for creating shareholder value for B2B SAAS is a great strategy for long-term relationships and career. It helps if you diversify interests that build muscles which can be leveraged in your career in interesting and original ways. Don’t forget fun-maxxing. You can optimize the joy out of your hobbies and interests. You don’t need to travel x countries or read x books a month. You might be losing the forest for the trees.