Seeking Brokerage Recommendations

Planning to open a brokerage account here for my Japanese wife. Japanese Bank websites, by and large, have dismal UI/UX and are ridiculously cluttered and poorly designed. SBI and Rakuten might be the worst offenders here, but I haven’t used all of them.

Does anyone know of a Japanese bank with a clean and more modern online user experience? Focusing on the website here more than apps, but will appreciate any suggestions re: the latter as well. English not a requirement here.

by denbushi