https://ymdkey.com/collections/75-keys-ortholinear i got two of these
https://thepihut.com/products/relegendable-plastic-keycaps-for-mx-compatible-switches-5-pack
sadly i still need another 7 packs of these to cover the second one but they are pretty reliable (the keyboard i mean).
it's incredibly difficult to get the keys outside of UK/USA, i had problems in bulgaria and bosnia with shipping.
anyhow, you probably will want one of those staggered key layout things, but the relegendables will cover you there for all the letter keys at least.
it's quite a lot of effort to get used to typing on a pure grid layout keyboard with no double or any width keys, basically nobody hardly does it and as such the best layouts for them are pretty much unknown and probably what people use is highly idiosyncratic, but i can tell you one thing:
i never want to go back to normal keyboards. the cherry silvers i have on the switches, they could be even softer, with shorter travel for me too.
the faster i type the more it matters that the keys don't go far and don't have to go far to register a press.
as some other mech keyboard heads i have talked to on nostr say though 'if i get used to it, i'll never be able to cope with regular keyboards'.
my answer to that is: my idobao always travels with me if i'm gonna do any serious work.