RHubarb doesn't need caging, personally I'd suggest that (in order of neccessity), strawberries would be top of the list, followed by the currants (black/red/white) then gooseberries, then the raspberry/blackberry family and hybrids, plus dwarf trees fruit like plums... I've got Tulameen (summer), Autumn BLiss and All GOld (autumn, yellow) raspberries adn reckon they're all pretty good.... most of them came from Aldi/Lidl, took a year to get going (I put them in pots in the GH as soon as I got them, and only planted out the ones that got going properly the next year) ) the Tulameen started up in mid June this year, though more usually they start at the start of July, the Autumn Bliss have been going since the start of September, joined by the All GOld a week or so later, they can carry on into November if we don't get a proper frost...All GOld is a lot sweeter though smaller adn maybe not so flavourful as Autumn BLiss, but I like them mixed together... the plant is a chunk politer than Autumn Bliss too, though with all raspberries, once you've got them your main horticultural problem s trying to stop them taking over completely... sooner or later they will succumb to viral diseases though (they get stunted and unproductive), at which point rip them out and plant something else and swap the location with something else ....FOr Strawberries I like Cambridge Favourite for the taste, but it needs managing properly or it's just an invasive ground cover weed that won't crop well... blueberries I wouldn't know about.... I'm no fan and my soil would be hopeless for them as it is rather alkaline...