Looking for ideas for a farming option on a small farmland that is financially rewarding and feasible

Dear members

I am interested to use farmland of 5000sft in a financially gainful way. I would prefer something that doesn’t need frequent labor work. A few ideas I could think of is to plan 20 lemon trees, 10-15 papaya trees, and 15-20 guava trees, assuming I can plan 50-75 plants considering 6ftX6ft (or 36sft) area for each plant. I would be happier to make a net income of INR 15-20K per month.
I would like to know if the above plan is feasible, my plans can be realized, suggestions of members here, and also if there are better ways to use the resources for indicated or higher income. Thank you so much.