Can anyone suggest a good water purifier for a family of three adults.

We need a new water purifier since the current one is giving out after 10 years. We get Cauvery water and have a tds of around 220-230. We've been using RO in the past, but I've been reading for cauvery and tds of below 250, you don't need RO. There's a lot of contradictory info on this and it's getting annoying trying to find some decent info. Edit- The front runner right now is the Urban company native m1. Edit 2: Would appreciate if anyone has done any research into whether RO is required for Cauvery water.