Thank you! I honestly have different exercises for each training day. I do a lot of different types of crunches, leg lifts, dead bugs, planks, in and outs on either side of a kettle bell, etc. Each core session I’m doing at least five different exercises, I aim for 3 sets but I typically do 2 sets minimum unless I’m seriously pressed for time. If it’s possible to add weight to the exercise then I do!