I haven't used too much many but just analyzing at whole project, using altassian suite makes more sense to me. (even for small team projects.). Using their hosted solutions is quite affordable and you don't want to spend your energy in learning new product or host or learning integrations.
JIRA (tasks + bugs) + Confluence (for any kind of internal docs) is all you need.
JIRA (tasks + bugs) + Confluence (for any kind of internal docs) is all you need.