I bought a pair of mendl in the summer very very happy with them. Can't see me changing makes now
Even the Mendl sports wax is pretty good and seems to make a big difference to the boots, had a few soakings to but feet dry.
Had 3 pair of Harkila, 1st pair were comfy but stiching patch at heel went quickly and know of a few other pairs the same, last 2 pairs were cheap in a sale but were really rubbish. Last pair have done next to nothing and leak right round sole/leather so even Yeti gaiters dinae keep ur feet dry.
If ur boots are fairly good with good grip/soles but leaky buy a pair of yeti gaiters, that pair of harkilas had a 3" hole at both heels yet i could still wade throu burns keeping my feet dry with the yeti's on, managed to get another 3 seasons out of them with mainly dry feet
The bigest thing if ur over the top of ur wellies a pair of shorter leather boots are not going to help. Not much is waterproof from the hole ur foot goes in.
U mibee need a pair of cheap waders, if it carries on raining like this mibee need some chesty's