Along with bitbuilder’s advice, I’d recommend watching this course: Intro to Character Modeling
It’s an oldie but a goldie. Concepts are very applicable now.
Is it recommendable to make the retropology of the character with the workflow you are using for latter Rig it and animated?
Yes, retopology is a crucial aspect of making characters’s animation-friendly. Raw sculptures are way too inefficient to be used for animation. Jonathan Williamson uses retopology techinques when modeling his character in the above course.
