How much are you willing to spend? I tend to keep my wallets fr a very long time so I do not mind spending a little.
Filson no longer makes the one I currently have, but if i was buying right now this is what I would get, it looks fairly slim and is made in the USA. I prefer the bi folds as they seem to have a slimmer profile.
https://www.filson.com/accessories/wallets-card-cases/bridle-leather-bi-fold-wallet.html#sku=11070399-fco-000002314