I've moved this to its own dedicated thread.
I like Fluval equipment. It's widely available, reliable, fairly cost effective, lots of people use their products so it's easy to troubleshoot, and you can easily get spare parts if you need them.
I have a 406 on a 200 litre/ 50g aquarium. So a 407 would be the newer version of that. It's a little bit oversized, a 307 would do just as good a job. But you are wanting to run a lot of chemical filtration, so I'd go 407. Bottom basket sponge and polishing pad, middle 2 baskets biomedia, top basket your phosphate removing pads. You will find a canister can hold a lot more media than your HOB so you can get in a lot more of the phosphate pad and it will last longer before needing replacing.
If you want a little more premium product, then look at Eheim. I'd probably look at the Eheim Pro4+ 600 as an equivalent to the Fluval 407.
If you are wanting something on a budget, there is a Chinese manufacturer called Sensen that brands variously depending on your country of origin. AllPondSolutions here in the UK. Sunsun in the US. They are called Polar Aurora somewhere as well, and they have other branding I've seen too. Widely used, widely recommended. Probably the APS 1000EF is the equivalent to a 407. Im not sure what the Sunsun model number is. They also do versions with built in heaters and UV if that's your thing.
The thing is you have to maintain things, not wait for them to fail. Periodically clean the impeller and casing, rinse out the sponges. I do that every 6 to 8 weeks. Replace the impeller, impeller shaft, impeller cap and O ring every year or 2. This will mean your equipment functions better, lasts longer, and doesn't need replacing. If you get 407 get the maintenance kit too that has all the parts needed to be periodically replaced and replace them after 18 months. Same for your HOB. There is no reason a filter can't be trouble free indefinitely, or at least as long as parts are available, if you keep ahead on maintenance.