I would recommend Streak CRM - fairly cheap and organizes our emails in a way that helps us focus on the right parts of our funnel. Flexible enough to act as analytics when combined with Excel and some manual counting.
Kubernets, Gitlab, Slack, Bitbucket, Intercom, VSCode for private repo. We had started with JIRA, Trello etc.. and tens of other different services like Asana. Now, it has reduced to this.