These are the best numbers I can find. Most likely inaccurate if you have better numbers please share.
SU-30MKK (97)
J-10A (240)
J-11A (104)
SU-27SK (32)
JH-7 (270)
J-8 (122)
J-7 (340)
Total (1205)
scramble is what I use
Looks like they have a couple of J-8FR brigades, but no real J-8 brigades anymore.
For J-7s, if we ignore the ones listed in there for flight academy and withdrawn from use or stated to be accepting new units, we are down to
44th, 88th, 97th, 63rd, 86th, 57th, 20th, 53rd, 52nd, 132nd, 71st, 21st -> 12 brigades
My guess is that the real number is less than this, since there are a couple of J-20/J-16/J-10C brigades which haven't been revealed yet. My guess is about 300 left.
JH-7s seem to be gone and we are left with 5 JH-7A brigades in PLAAF and 3 in PLAN, so about 240?
but my point is that they are adding 150 aircraft a year at least right now and that pace is probably going to go up over the course of this decade. They are going to be able to replace all the J-7 and su-27SK, + a good chunk of J-11A/su-30mkk/JH-7A in 5 years. At which point, you are probably ready to mass produce J-35. There aren't that many older aircraft to get rid of.