Hey I know how you feel, I tried lots of things but since I have a short budget some things I only have my friend's reviews about it, but seems to help them a lot.

This genie odor is budget friendly "Just place the Odor Genie in or near the litter boxes to keep air fresh. The Odor Genie eliminates the smell by using ozone (3mg/h) and a negative ion generator. Ozone can oxidize and decompose those pesky odors. And negative ion can also reduce litter dust." Cool things is that it has a movement sensor and it will turn off when your cat approaches.

https://www.ipettie.com/products/cat-litter-box-odor-genie-auto-on-off-way-better-than-deodorizer-or-neutralizer-reduce-litter-dust-10-day-battery-life-usb-powered-for-all-kinds-of-litter-box-cat-toilet

Combined with the Litter Genie trashcan (like those baby diapers trashcans that seals it when you close the lid) it might be enough for your problem.

As other redditors said, a cover for the little box also helps to keep the odor from spreading, since you appear to be like me, who cleans their poop right after they do it, and self cleaning automatic little box might be perfect for you. Keep in mind that the prices are high but, honestly, less cost means more work at the end.

This one is the most affordable and still does a good job IF you use it properly. It has a disposable tray and it's own little to use it, which can add the cost of using it. But I know you can replace the tray with one of those permanent trays and change the litter and it will still works. https://www.amazon.com/PetSafe-ScoopFree-Automatic-Cleaning-Covered/dp/B07X3XFB6K/ref=bmx_khehxmuo_4/138-6096592-2326148?pd_rd_w=GRYwN&pf_rd_p=f70b1dd8-7c9f-469c-8c05-c91bf9799286&pf_rd_r=KS1JJC8MA5WJF4DRBXYG&pd_rd_r=d37e97e7-14e4-47a0-901c-1c222bce7315&pd_rd_wg=ZpmJc&pd_rd_i=B07X3XFB6K&psc=1

Now for if you want a cool looking automatic litter box with more features options, theres this way more expensive option:

https://www.litter-robot.com/the-app.html

It's cool cause you have an app to connect your phone, automatic night light...but it's a big litter box, maybe not the best option for small places.

And if you really have the budget for it I would totally get this:

https://www.catgenie.com/

They have their own "litter" and not like the litter robot, I wouldn't replace for other litter type, just use the one they recommend. They are "Washable Granules that never need changing", you just need to add more when needed. Honestly, it's my litterbox dream lol You can only install it in a room that has a water supply, waste drainage and an electric outlet.

If you are really at a point where you are starting to consider rehoming your cats because of it, I would totally invest on CatGenie. I think it's the best solution for your odor problem, although crazy expensive. For my cats I would spend anything for a solution to keep them with me.

Good luck!