I’m looking for an alternative to Salesforce CRM

We have been using Salesforce for a couple years now. We like the Sales and Service apps that are included, but the product is insanely expensive and not something we can continue with as we grow.

We're paying over $5k per year for 4 users. I checked with Hubspot, but they were about the same price. Does anyone have a suggestion for a more affordable CRM option for small businesses? We just need a way for a couple sales people to keep track of leads and accounts, and also want the service piece, where we can create cases for customer requests. QuickBooks integration would be great as well, although we may be moving away from that platform as well.

Thanks in advance!