It depends on what's the deal between you and the other user. There are many good escrow service providers there but some of them don't accept every deal and some are popular at for example, collectibles, while others are popular at currency exchanges or etc.

My favourites are: minerjones and SFR10.

minerjones is just an amazing person, he helped me a lot of times in past and just really appreciate what he did here for me.

SFR10 is a very trustworthy person, he was also the escrow of QTUM signature campaign, he was holding 7.39 Bitcoin back in 2017.

Well, it's up to you whom to trust, these two are just my favourites and I believe I amn't alone there.