I’m not sure this is even realistic nowadays. For US listed ETFs, basically all Vanguard ETFs are a viable choice and now Fidelity has even funds with 0.00% TER.
For Europe, there’s now quite a huge choice of ETFs within 0.05-0.09%. For MSCI World, there are at least 3 ETFs with lowish TER (0.12-0.19%) from Lyxor, HSBC and Xtrackers (also in CHF on SIX). The Ishares Emerging Markets IMI with 0.18% TER is as cheap as anything in the US and is probably the single best EM ETF as it includes small caps as well.
I find the only thing really missing in EU-listed ETFs are cheap developed world Small Cap ETFs. The SPDR MSCI World small cap (WOSC) has 0.45% TER (but is available in CHF on SIX), and the Ishares MSCI World small cap (WSML or IUSN) has 0.35% TER.
Actually considering all this, the popular VWRL is not such a good choice anymore due to high TER of 0.25% and high spreads. The same bad spread situation concerns the SIX-listed Vanguard VEVE, VEUR and VFEM.