Eggplant - Slide kick and qcf lp takes easy care of him.
Meat Catcher - Wait out its teleport and then qcf hp, followed by mashing heavy kick.
Drinking Worm - A fight of endurance. My way of dealing with this sucker is to constantly piss to charge meter and then mash light kick when the small worms get close. Jump over all of them once they get close, so as to not get grabbed with big mama being nearby. Then just do the wave super over and over. For the big mama, just get close to it and wait until she starts waving her tentacles or flashes yellow. Then mash heavy kick.
Fluid Hunter - Get close, mash heavy kick. Dash through her to make her whiff, then mash heavy kick. Repeat.
Alraune - She gets obliterated by heavy slide kick.
Expand Bee - Mashing heavy kick works well against this dude as well. Forward heavy kick knocks it out of literally everything. It also literally can't do anything dangerous at all. You literally have to let it win for it to win. Literally literally.
Green Amoeba - Annoying fight solely because getting hit by anything heals it and its animations take forever (and are super unsexy to me). But surprise, surprise, it loses to qcf hp.
Milk Jellyfish - Mashing heavy kick once again just obliterates it. All you gotta do is dash through its attacks. Jumping in on it with a heavy kick is usually a good way of setting up the mash. You can also do forward heavy kick to knock it down and then mash on its wakeup.
Roper - Pick one of them and mash heavy kick on it. Be patient and wait until it flashes a color and then mash.
Fallen Fairy - Got no real good tips for her. Heavy slide and mashing heavy kick usually does it. She can just decide to screw you over though with her overloaded kit and insane mobility. Not to mention blockstun is really wonky on her, with her being able to sometimes grab you through it. It's also really difficult to find time to properly heal against her.
Fairy Crusher - I do qcf hp and then do wave super when I have it. You otherwise just have to pray you don't get overrun and stunned. Was way easier (and more fun, while still being challenging) when it only had one of them at the start.
F.C. Boss - This dude is a joke. The amount of chip damage he takes while blocking light kicks is hilarious. qcf lp and mashing light kick on block or heavy kick on hit works incredibly well. qcf hp has a tendency to clip you through him for some reason.
Alakune - Just like Alraune, she gets absolutely fucked up by heavy slide kick.
Ana moguri - qcf lp, run away, charge meter, do wave super.
Frozen Wolf - Also gets obliterated by heavy slide kick. qcf hp works well as well, as well as mashing heavy kick.
Mist Sisters - This fight is just tedious (and has nothing sexy to offer for my tastes). Charge meter, avoid the loli, then mash light punch to blow wind at the statue is how I deal with it.
Raper Beast - Git gud. Again, heavy slide and mashing heavy kick works decently well. He's also very susceptible to getting parried.
Hell's Door - Uh...
Just a general tip: you don't have to mash buttons to escape grabs. You can just hold left and right and the game will automatically mash at the highest speed it possibly could, making any grab that's not dark blue a non-issue.
tl;dr - mashing heavy kick, doing heavy slide or doing qcf hp fucks up pretty much everything in this game.