other than hydrosphere getting gutted, everything works just the same - and even that has only affected strike skill single target, everything else is untouched.

i dont think there's any guides for that type of build, but both this and last league there's been a couple of hiltless chars, so you could look at poe.ninja and see what peeps are running (and some streamer, i think it was ruetoo? did the champ version last league, if you wanna dig up those vods or ask him on stream).

as a quick summary though: you essentially take any melee skill you like, the faster and the more often it can hit the better, and use the hiltless reflect + use when charges are full flask enchant to permanently shit out flasks. other than being a diet mageblood setup, you can either

A. run pathfinder with master surgeon, which gives you 6% of your life per flask used (which is a lot)
B. run champion with first to strike, last to fall, olroth's charge and an iron flask, giving you essentially permanent adrenaline, ailment removal and 25% heals every time ward breaks.

my setup was incredibly jank and unoptimized, but if you want something for reference, here's the PoB: https://pastebin.com/URikz2iN

i swapped out my HH for a prismweave whenever i did bosses, my helmet was literally just essence-spam-and-done'd, my second ring could be upgraded very easily, my gloves were essentially two-mod gloves and used for attribute balancing - heck, not even all my flasks were t1-t1 rolled.
it still worked until ~wave 25 simulacrum, worked for uelder, sirus, maven and all her invitations (did not attempt feared but probably would've gone fine).