Have you tried any of Er Gen's books? I Shall Seal The Heavens(finished) was pretty good but I'm liking A Will Eternal (being translated) even more.
History's Strongest Senior Brother uses knowledge from a past life to become OP but it's still a very good story. The Desolate Era uses a minor technique to improve his soul and get a headstart but it becomes irrelevant. Nothing really unique about it but still a good read overall.
The Cacooned Cow novels, Martial World and True Martial World, use a soul and energy cheat respectively but their uses are very minimal.
Otherworldly Evil Monarch, in my opinion, is a really good story. The MC does get progressively stronger because of a cheat but there is more focus on the world of the MC rather than the MC himself which makes this so unique. Ze Tian Ji is also one of my favourite stories however people get turned off by how long it takes the MC to actually start cultivating (due to an illness that becomes very relevant). It's a breath of fresh air and I recommend you read it if you can bear an MC that goes about with only his head for about 150 chapters.
Cultivation Chat Group follows the life of a modern student who accidentally stumbles into a chat group of immortals. His cultivation life begins and we see how he adapts his modern way of life into cultivation (a popular example being how he uses a rice cooker as a pill cauldron). The story itself is fairly light-hearted (not slapstick like LOHP) but also a read I'd recommend.
Pivot of the Sky is more about unravelling the truth of how the current cultivation system came to be and how the MC practices the original cultivation system as it was supposed to be. It's only on like chapter 88 or something but I think the story will go a lot deeper. Personally, I'd hold off reading it until it lives up to its expectations because you might lose interest in it whilst it's being translated.
Ugh... I'd write more but I've lost my energy... Just take a look at my reading list and flick through the pages.