The answer to your question rather depends on what you mean by 'best'.
In terms of trend lines that are very easy to see and draw - especially support and resistance lines - then a non-time based chart is the way to go, such as Point & Figure or Renko chart. This is just my personal view, but I would recommend all newbies start on those charts for this reason and because they enable the analyst to focus more clearly on trend, S&R and supply and demand, without going down numerous cul-de-sacs overthinking the significance of doji's, bozos and hikkake patterns etc.
Between Renko and P&F, I'd say start with Renko as it's simple to understand and use. P&F can get very complicated and lead one astray down the avenue of paralysis of analysis. Others will take the opposite view of course - which is equally valid (or invalid).