https://mangasee123.com/ and mangadex to fill the gaps.
I got tired of sites dying and taking my reading list & progress down with them so I'm writing https://sr.ht/~nhanb/pytaku/ . I mean, tachiyomi works mostly fine too (save a few empty pages here and there) but it's android-only.
>>10 I have a boox nova 2 and it's too small for some series, so imho if you're going to get an e-ink tablet for manga at least go for 10 inch (but at that point the prices get... unreasonable)