CRM with email sequencing, phone, and better workflow for adding contacts

Here's what I need:

• Email Sequencing (important): Send a cold email and automatically follow up if there's no reply within X days. Stop messaging upon receiving a reply.
• Phone Service (optional): I need a US phone number for calls and texts, with an iOS app. It should allow me to buy additional minutes if I exceed my monthly limit.
• CRM Contact Management (optional): I'm looking for a better way to add contacts to my CRM. Ideally, I'd like to add contacts directly from LinkedIn and check if they're already in the CRM. Alternatively, something similar to HubSpot's feature where I can add a new contact and enter the company's domain to fetch all relevant information and links.

HubSpot has all these features, but $90/month is currently too expensive for me. Any advice?