and the Condorcet method can completely fail to select a winner.

That one’s not a flaw. All elections can suffer from ties. Pure Condorcet just makes it obvious when there’s a tie (and this is very rare). There are a bunch of Condorcet completion methods for resolving the tie.

Better ranked system (transferable vote instead of points)

https://civs1.civs.us/civs_create.html ? or https://star.vote for scored ballots

Have you tried https://star.vote? It’s a better voting system https://www.equal.vote/star_vs_rcv