Focus on the onboarding experience. This includes how new members are invited, what they see on the server before they verify, where they land (which channel), and what they should do next. Consider every detail related to onboarding, as this is how you can reduce Discord leaves (people leaving shortly after joining).
If you want a tip, I recommend clearly explaining your USP (Unique Selling Proposition) as early as possible—ideally before they verify. It should be the first and only channel they see when they join the server. Use this opportunity to hook them by highlighting what sets you apart from other projects. Afterward, proceed with verification to ensure they are not bots, which will then unlock access to the rest of the server.