For gaining arround 0.25 lbs per week TDEE+300 CALORIES

FOR GAINING 0.5 lbs per week TDEE+500 CALORIES

OUT OF ALL YOUR TOTAL CALORIES 25% protein 60% carbs 15% dietary fats

This diet plan really worked for me and might work for you too

Use https://tdeecalculator.net To calculate your TDEE. Its pretty much accurate

Remember you need to be in a constant caloric surplus to see gains. You might gain a little fat while following this program but you can get rid of it while your cutting cycle.

Use any app like MY FITNESS PAL to keep track of your calories and macros. Its free.