Play along with videos and transcriptions. Bass solos and bass lines on some of the most played standards of the jazz repertoire. Every release includes a slowly played version of both bass line and solo to work with if you aren't familiar with music reading. Consider subscribing to the JBA Play Along Membership Plan for weekly videos to access anytime and study at your own pace.
https://www.jazzbassacademy.com/JBAmemberships.html
All video starting from 07/09/2024 will include a lesson explaining all the melodic and harmonic material I used in playing the bass line and solo. All previous video will be updated soon (with the same download links) with this new section that will help you understand how to create better bass lines and solos.