How to convert a swing based application to Android application
I think you need to take advantage of the prior answers and finds at https://www.google.com/search?q=How+to+convert+a+swing+based+application+to+Android+application
There appears to be many paths, which will you take?
Can you prefer any site which makes me easy to work on
It's always a choice of how much work you will put in. You can exchange work for dollars as the search I gave appears to have products for sale to help. Most of all, the choice of how to proceed is yours as there are many ways to do this.
Let me be clear. You decide.