Cheap option- Aliexpress Thinkrider flats.
https://www.aliexpress.com/item/1005003156742316.html?spm=a2g0o.order_list.order_list_main.312.2f0b1802U9N9v1
They’ve soared to a dizzying £20 since I got my first set, nightmare! But they’re good ime. 3 bearings, no bushings but otherwise very HT-ish, the platform is almost the same as the old Nukeproof Horizon Comp. I’ve used. I’ve used a couple of sets of these for about a year now and they’ve not missed a beat, and I just checked and they have essentially no play. They’ve had some hard use on the big bike but I should say I weigh 10 stone so I’m not stressing them as hard as some folks will!
IME even a pretty loose pedal can usually be made to feel right again just by filling them with a suitable grease. With most rebuildable pedals, that doesn’t even need them to be stripped- you can remove the end caps, fill the hole with grease, and then refit the endcaps and the act of tightening them up basically greaseguns that grease you’ve just added through the whole body. Repeat til clean grease comes out the crank end. (obviously not all pedals work this way but most modern ones do. You’ve got to be extra careful with plastic pedals too as it’d be fairly easy to damage the plastic thread).
I just went and had a wobble of all my pedals, my ancient Nukeproof Horizon Comps do have just enough play to slightly knock at the crank end, but I can’t feel it as play while riding- that’s just because of reasonably frequent repackigns using that method. They’re on their original bushings, done tons of hard use inc alps holidays, dh racing, the megavalanche, and lots of endless pentlands swamprides.