IF you have V brakes and don't mind an integrated brake/shifter, I'd go with these.
https://www.ebay.com/itm/38430492336...MaAj1AEALw_wcB
Because those are what I've gone with and they work fine.
I might add, if you are replacing shifters, now would be a good time to upgrade to 9 speed. All you need in addition to the shifter is a 9 speed cassette & chain.