Is Zoho CRM the only option for us?

Hi everyone, I run a financial advisory/planning firm. We currently use an industry specific CRM. However, we're growing out of it. We have 11 people in our firm total.

Our current problems:

1. We're not sales-oriented. We have 500 existing clients, and we only let in about 1 new client per month. So managing leads and deals is not a super high priority. We're more interested in smooth workflows, keeping good notes, and keeping current clients happy.
2. Most CRMs are not designed around a business like ours, so deep customization (UI, UX, and data) is a key feature we're looking for.

I'm specifically looking for, in this order, these key features

1. Custom objects/modules.
2. Drag-and-drop workflows for business users.
3. Drag-and-drop custom UI.
4. Workflows that allow parallel/simultaneous workflow step assignments (i.e. two people can have two separate tasks at the same time).
5. Low-code functions that can interact with our data and outside sources.
6. Great looking UI that is modern.
7. Forward thinking CRM product that is constantly developing and innovating. We don't want to get stuck with a stagnant product like we have no due to lack of development.