Here's my contribution.
It's forever changing in the overdrive department but I've used this rig for a long time. It's a LYT pedalboard with a OneSpot. I just have too many pedals for the VL PP2 and I find the OneSpot is fine.
It's not at all fancy or clean but it works for me doing classic rock and modern country covers as well as the occasional sideman or recording gig.
A lot of the ODs are new as I just came back from Nashville and catching up with some fellow gear nuts and am trying some new things.
For off the shelf pedals you can find in a GC - I LOVE Fulltone, Way Huge, and MXR. I like BOSS, but not for overdrives. I much prefer Fulltone or MXR/Way Huge for that stuff. I'm a big fan of the Fulldrive 3 but I'm trying out a Visual Sound VS-XO in it's place right now. It's OD+OD where the FD3 was OD+Boost. I dig the XO as a swiss army OD and if I could only take one, that'd be the one.
For boutique stuff I love Wampler, Analog Man, Keeley, Rockett, Greer, Mojo Hand FX, XTS, Catalinbread, Menatone, Pigtronix, Jetter, Walrus Audio, Mad Professor, Earthquaker Devices, JHS, Lovepedal, BearFoot, ZVex, Xotic, etc etc. Just depends on my mood. I have about 50 OD's in a storage container and I'm always changing them out. I rarely sell anything, LOL!
Good luck on putting together a board and choosing the pedals. It's a fun yet tedious task!