I don't think most popular is really so measurable? There are millions of dudes who like all kinds of stuff, from 230 flying ashtrays, to 185 hornady defense JHPs.
For 185 grain JHPs, the Zero 185 JHP's find there way into a lot of smaller company ammo, they are very good and accurate bullets, and very inexpensive. Same with RMR's when they have them. Montanna Gold bullets also has a very very nice 185 JHP. They are all basically unobtanium right now, lol........huge backorder.
230 grain JHPs, I'm partial to the Montanna gold.
As far as the best you can get for the most reasonable price right now, under curent inventory challenges? The only 185 or 230 JHPs I've been able to get in any numbers the past year were Hornady XTPs from Graf's. Not a bad bullet, but a bit pricier.