Been mulling this over recently for a Swift too.
Running a 29er and if your looking for the XC kind of thing, and you like Continental tyres like the Race King/ X king and don’t want punctures either then the Protection versions have a UST bead.
This clicks into the WTB rims which have a matching UST interface (but use rim tape to save rim weight) for an optimum tubeless interface and are light for the width. Looking at the KOM’s 21/23/25 you can get a wide light rim with an equivalent to Mavic Maxtal type/ scandium upgraded alloy to reduce denting. From past decades when XC would be 17 inner it seems a migration to about 23-25 inner seems to be where it’s at, progressing towards 30 inner for trail and bigger volume tyres. So maybe a WTB KOM 23 is where it’s at with a Protection Xking front and Raceking rear.
The Easton ARC rims are also good value/ size/ weight, but don’t have a UST bead interface which may be a good or worse thing depending on what tyre and type you were thinking of.
The Crest is an old staple.
The Ryde Trace XC has an assymetric profile which might be of interest.
The older BOR XMD 333’s are still available. Light and eyeletted but narrower.