I would suggest to open up a stake pool for Cardano and stake the ADA to that pool from the Muesli LP pools. Minswap does the same and have a huge amount of ADA to stake. They have a proposal at the moment to change the structure → https://app.minswap.org/de-DE/gov/7fdf5b96fc09c2fd5427b91ba38597c97b3fe23d931e88ec134d7487cbf35e0e
The fees earned (100% margin) from the stake pool could go into the treasury (or the buy back program mentioned before) and also to team for further development.