My bench wasn’t that good either,but it’s finally coming up.I use a westside style of training.Here’s what I do
Accumulation(I prefer 4-5 weeks but you can do it for as long as you wish)
Max effort
Max effort movement for a 5 or 3 rm.I prefer a 5 rm.Use a closer grip that usually.Pick full or close to full rom movements.Mine are close grip bench,cg floor press,cg paused incline,cg pin press
Main accessory.This is a movement to attach your weakness.Mine is triceps so I do high rep dumbbell incline followed by barbell extensions.If it’s your chest you can do dips or dumbbell flat.Go for either a rep pr,a one and 3 set pr or total reps(60 reps for example)
Triceps
Back
Shoulders
Bis
Dynamic effort upper
Dynamic effort bench.Go for 20 sets of 3 of so with 50 %.I really hate it but it has helped my form and put a lot of mass on me.Use a variety of grips
Again hit a weakness
Tris
Back
Shoulder
Bis
Intensification(I’ve done it for 2 weeks but I think 3 is way better)
Max effort upper
Max effort movement.Use your regular grip or one closer to that.It’s ok to you close if you want.Work up to an 1 or 2 rm.If you don’t plan on competing I’d suggest 2 rm,at least for the first 1-2 weeks
Main accessory.Again attack a weakness,but now I prefer attacking it in terms of motor pattern and not muscle,if that makes sense.So if you have a weak lockout mid rom pin press up to a 6 rm the first week,a 3 rm the second and a 3 sets of 2 or 4 of 1 or something like that on the third
Tris
Back
Shoulders
Bis
Dynamic effort upper
Banch press.9 sets of 3.Put bands if you have,if you don’t just go with a heavier weight like 70 % or so
Main accessory.Attack a weakness.Either the weak muscle(heavy extensions) or the motor pattern(I know it’s probably not the right definition but I don’t know how else to say it).Don’t go nuts.For example if you choose board press as an accessory go 3 sets of 6 instead of an 1 all out set of 6
Tris
Back
Shoulder
Bis
You can find way more info here