Should I use a guided questionnaire or forms for new member sign-up process?

I've been tasked with designing a membership join process for a nonprofit.

Is there a best practice/process for developing a sign-up process that has multiple steps and also needs to validate the user's selections? Should I use a guided wizard that probes the user about who they are and then determine/"tell them" their options based on their responses (which seems slower but more user-friendly), or just give them the options with descriptions and let them choose (faster but less intuitive)?

I'm thinking something like a multi-step guided form like Turbo Tax that surfaces your options based on your responses versus a multi-page sign-up form that asks you to fill in/select all the options and provides descriptions of each selection you're making.

The tricky part is "who they are" determines their pricing/member type and their location determines their chapter selections (and is also part of their membership pricing).

Thanks for any help!