Ask HN: What Is the Best CRM for Small Company

Hello, I'm struggling to find a decent CRM for my small but growing company. Currently paying $45/m per user is not affordable. I'm also Canadian so any USD product I automatically have to pay an extra 35%. I'm comfortable installing a CRM on my server if need be. I installed one but its very bloated an slow. Looking for a lean solution kind of like notion. Looking for a list of suggestions. I will have around 3 users at most for the foreseeable future. Thank you!