not sure where to start with body recomp

been in the gym off and on this year for varying periods, and looking to seriously dive into body recomp now. i have been eating at maintenance and lifting 4-5x a week for maybe two weeks now, but i'm wondering if i should be in a slight deficit. i don't know if i should do 100 calories or like 300 calories if i were to do a deficit. or if i should just keep eating at maintenance.

i used measurements for a very rough estimate of my bf%, it was 29%. i'm 5'4 and 138 right now. any advice would be appreciated.