At a loss what CRM to use for mid size telehealth clinic

Hey, if you feel like after reading this you'd be a good fit to give me advice on this situation, feel free to DM me. At a bit of a loss. Willing to pay $30/hr for advice (sorry I can't offer more!) Wanted to put this disclaimer at the beginning.

What our company is: A telehealth clinic

Our current process: Patient books appt on Wix, and checks 'I'd like a text in 11 months to remind me for my yearly appointment' (this is not necessary for purchase!) -> Wix creates a Contact for that pt (.csv file) -> Wix creates calendar entry of appointment, which syncs to Google Calendar. -> Doctor calls using third party calling app. 11 months later, manually send out reminder text

When it comes time for the one year reminder, I currently take our .csvs from our Wix Contacts -> Excel and sort through the ones that wanted an 11 month reminder. Then, I manually text them. This is really annoying.

What I'd like from a CRM:

• Automatically / in real or near real time take Wix Contacts (in .csv form) and integrate into CRM
• The ability to automatically set up 11 month out text reminders

What I'd lose my mind over from a CRM:

• That near real time syncing of Contacts so we can send out automated 10 min prior to appt reminders (Wix allows you to book a session up to 30 mins before session time starts) – I'd love to have automatic 10 min reminders. We used to use Twilio – but they unfortunately don't work with businesses in our industry any longer
• The ability to store a list of all the big places we stock up with our flyers / last time we contacted / last time we delivered flyers (this is baby time compared to the need for storing over 30,000+ contacts lol)

Feel free to reply to this post with further questions or move to DMs. Please let me know if this is something you could help out with. I'm losing sleeeeep.

What I'm currently considering:

Salesforce Enterprise edition, using Zapier to connect Wix [zapier] -> Salesforce [zapier] -> SMS messaging app