Would love to try growing my own broccolini seeds! I have tons to trade including fenugreek, marshmallow, orange flame Marigold, Indiana Giant Cockscomb, Ruby Streaks Mustard, green in snow Mustard, flashback Calendula, pak Choi and more

Check Baker Creek Seeds if you can't find any by trade. They are not listed as broccolini, but sprouting broccoli.

https://www.rareseeds.com