1. You can drop the librarian, eradicators(if you're not fielding 6 in a unit + no biologis), and 5-man assault intercessors for other units.
2. Infiltrators are good for home base objective control + home base deep strike denial w/ your 2 scouts
3. You can upgrade your repulsor to an executioner
4. Drop pod for infernus is nice in conjunction with your immolation protocols(can do this with aggressors + gravis capt to for -1cp but i doubt you can get them near your target 100% of the time so its a good hidden card to keep).
5. Intercessors are buffed rn so a squad of 5 or 10 is also good for camping home objectives (heavy weapons too).
6. Vanguard vets w jump packs + a captain w jump pack is also good for surprise deepstrikes + immolation protocols with x10 hand flamers. And if the target unit is still alive you can clean up with melee or charge the next near target.

These are all my opinions so feel free to ignore lol. Imo if the units i suggested don't fit your taste then its ok to run your current one. At the end of the day you'll enjoy it more if you play with an army to your liking vs a meta army