RPGM usually should work out of the box with VNR and most text hooker (i use ITH). Kanjitomo also a good choice for games that can't be hooked because it have auto detect for text near mouse cursor. I usually map a mouse control to my right analog stick using joy2key. You can also use google translate on your phone to read some kanji. Usually it can detect better than kanjitomo. A lot of kanji up to N3 is easy enough to remember so personally i recommend to learn them. It can reduce the hassle of using software/app by a lot.
edit: for MV you can read this
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Personally i prefer using kanjitomo/googltrans because it's too much of a hassle.