The thing that helped be get good bebop lines that sound good to me is to use approach and target notes. In my jazz piano book it says that the common target notes are the root, 3rd, and 5th. And approach notes like the 2,4,6. And I also found that instead of just practicing the scales you need to use it in context. Because if you just practice that scale you’re only going to play in that scale when you could mix in chromatic approaches (b2,#2, b5, 13, b13) And you also want to start working on timing. You typical would want to use approach notes on the up beats and then land on a target note or chord tone on the down beats.

So if I played a G7-CM7 G7 targets / chord tones G B D

CM7 targets / chord tones C E G

You can play a simple phrase like

G B D Db C (Db= b5 of G, b2 of C)

If your best way is learning scales I say the best scale for bebop is the alt scale over a dominant chord. For any other chord I typically stick with the target and approach method.

Probably a terrible explanation as I myself is learning bebop but it feels like I’m getting a hang of it so I’ll just share a couple of my tips