Yes, dear colleague,
Why do you want this child to bear weight?
What is the childs' diagnosis?
What is your therapy goal?
Are you aware that some children do not start to bear weight untill they are older?
The fact that she is crawling is a good sign, that means she is actually weightbearing (hips) a little, that is a good first step....
I would say the best therapy might possibly be... wait and give her some time. Try to see which signals she is sending you, what can she do. Children that are hypermobile, hypotoon, have pain are often late with their milestones.......
Do tell us more, it is always hard to give advice when you cannot see the child.......
There is a lot of literature on VARIABLITY of milestones and , speaking from the childs perspective, manners to reach a new movement goal.
Children can be delightfully creative in moving.
Esther