Sony 100-400 is my favorite "do-it-all" from landscape to macro to occasional wildlife (with 1.4X TC at times)
Tamron 28-75 f:2.8 G2 - just light and optically superb, great street photography lens
Sony 600 f:4 with or without 1.4x TC - it's either all in if I am on a dedicated trip / day out, or sitting in the closet.
Sony 20mm f:1.8 - stupidly good optically. Great complement to the 28-75 but obviously fairly specialized.
That's it, covers 99% of what I do. Sometimes I rent a Leica M and a 50mm Summilux for a week - and as much as I enjoy it, I love not having another $13k tied up in gear I rarely use.