Here are some tips from C Sews on tracing sewing patterns on to paper.
Sewing Tips How to Sew Darts - Chalk and Notch
Tips on Tracing Sewing Patterns - C Sews
How to Print & Use PDF Sewing Patterns
When to trace versus when to cut a sewing pattern
Q&A - patternmaking — Q & A series — In the Folds
How to Transfer Sewing Patterns to Sturdier Paper - Crafty Gemini
Tilly and the Buttons: Tips for Tracing Sewing Patterns
How to Use PDF Sewing Patterns: Everything You Need to Know to Get
How to Print & Assemble a PDF Sewing Pattern
Using carbon tracing paper for sewing
Bra-making Sew Along: Pattern Tracing • Cloth Habit