I'd recommend first reading Aaron Ross' - Predictable Revenue before choosing your CRM system.

Flexible and complete solutions I'd recommend

Nutshell
Hubspot CRM + Sidekick

Feel free to contact me for a quick chat about it.

Thanks

David

We've built this for our SaaS business at Keywee. Let's setup a call.

All of the anwers here are correct. As a sales manager with 3 years experience I also recommend you to go with Hubspot + Sidekick solution.

I am also a founder of CEO of inbound marketing and Hubsport partner certified agency Incredo

We have 3 SAAS venture backed clients which use also Hubspot + Sidekick solution for leads nurturing and sales tracking.

Call me for strategic consultation and set up guidance

We have a number of early-stage and venture-backed startups we setup on Infusionsoft or IBM Silverpop (Engage). In most cases we can offer you better deals than if you buy from the company direct. PM me for details

Freshsales CRM similarly provides a lightweight and simple SMB-focused CRM solution while offering expanded functionality. This includes providing integrations, workflow automation, and sales intelligence features. Other CRM solutions like Sales Creatio have refined their user interfaces to enable users to switch on specific business processes. Sales Creatio makes it possible to toggle between Marketing, Sales, and Service functioning as a more dynamic control center for running various facets of CRM. CRM software must be intuitive or you'll never want to use it. Make a note of how many clicks it takes to conduct a basic task and how easy or difficult it is to find the features you need. Beyond being easy to use, CRM software should be able to manage user error. For example, if you try to conduct a task on the wrong screen or input the wrong data, then the best software will identify your error and suggest the right way to do it. On the other hand, poorly designed software will either let you make the error unchecked or will throw up an unhelpful error message. One way to figure out if CRM software is really easy to use is by training others on how to use it. Finally, when you run into problems, whether it's a software bug or a problem using a feature, you'll need a responsive support team. That said, you should contact support while you're trying out software and make a note of the response time. CRM software is complicated, but support shouldn't be. If your business process requires access to the CRM on weekends, for example, then make sure you've got access to support during those hours. Make sure the software you ultimately select captures the information that's essential for your business, allows effective follow-up, and is easy enough to use that your team will work with it, not around it. Most customers still expect to interact with you via email, and an email can still capture much more data than a Facebook post or a tweet can.
You can read more here: https://in.pcmag.com/software/19356/the-best-crm-software-for-2020
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath