Banana high yield variety

i am a farmer from distt. aligarh (U.P.) and had planted banana for the first time in my area and had purchased the G9 tissue culture plants from sheel biotech new delhi , the experiment was successful and many more near me are following also but i went in too loss because the average yield of the bunch was 20 kg only though i got a good rate but even than i could not make enough profit as planned .
i am planning to plant another 7 acres in july 2020 and my main issue is which variety and from whoum it should be purchased so that the average weight is appprox. 40 plus only than profit can be taken from this crop some have recommended WILLLIAMS whichc is a mix of cavendish and g9 and some have said for G9 from a reputed supplier ad jain from jalgoan is the main supplier for g9…
so pl. help me identifying the best hight crop yeilding variety and supplier for the same . my cell number and whats app is 9414054481 .thankks