>>76948692
I'm fine with the reflavoring you've done, but you yourself say it sucks, implying homebrew would be better. I disagree with this, but I can't make an argument until I know what it is that would satisfy you.
>>76948678
Multiple possibilities. I don't think monks are good, but if you're willing to sacrifice damage you can do a battlemaster 3/open hand 5 build. Stunning strike, lots of ways to knock enemies prone, the works. Or, hexblade/bard. Some bardic inspirations are better versions of manouvers, such as glamours over manouvering strike, or sword bard's for defensive manouevrs. You can fluff some spells too, considering you use your weapon as your focus already.
But honestly, what you want already exists because every character can take the shove or grapple action, giving up damage to create special effects. Thief rogues could use items for a similar effect every round as well, and rogues multi very well with battlemasters too.
Int based warlocks? What's your int supposed to do, all it does in 5e is some skills, so you can just.. grab expertise in the ones you want with like a rogue dip or just do prof + 12 int and there, your concept is done. Martial draconic sorcerers? Just be a sorcardin, or reflavor a pure paladin as one.
>>76948708
And I'm telling people that what they want likely already exists, it requires them to but use the tools available to them in the printed books. We have a lot of published stuff by now, the game came out in 2014.