I've got no solutions that involve offside and VAR pal; people point to changing the rule for offside but whatever this new interpretation is (level/clear daylight/etc) we'll simple be in exactly the same position as we are now with PiGMOL pointing to examples where an attacker's trailing bootlace is still level with the stud on the outstretched leg of the defender so he's onside (exactly the same arguments as now just shunted forward a bit); the issue is, as somebody else has already said, the technology simply isn't up to the task (frame rate of camera vs speed of players run) to be accurate to the degree that they're implementing.
There is NO solution for offsides as far as "accurate to the mm" and VAR are concerned.
I'd say, leave the officials to do their jobs as they did before, let them officiate the match (both the refs and the linesmen), give them back full responsibility for decisions BUT with the additional tool of Video replays for all goals to check to see if an obvious error has been made.
If it takes longer than one or two replays,
if they need to zoom in,
if they need to draw silly little lines,
then it's ONSIDE,
if you can see without these elements,
then it's OFFSIDE.
It's not perfect and it's still open to debate but sport can't really be perfect, it's not maths.
We were sold a pup. We were sold "clear and obvious" but that's apparently open to interpretation now too.
Was Jesus clearly and obviously offside when he got our 6th on Saturday?
Was Salah clearly and obviously offside at the weekend?
Did Jesus clearly and obviously handle it when we "equalised" against Spurs?
(These are rhetorical questions and I don't really care for your interpretation of each of these cases.)
These "errors" that VAR are now finding are NOT what the game was being ruined by. NOBODY was moaning about these sorts of decisions. What people wanted were the blatant handball goals, the "he was yards offside" goals, the off the ball elbows, the diving for pens, the feigning of injuries when there was little or no contact, the keepers handling the ball outside the area, the ball going out of play but play continues, ...etc...etc...
...the OBVIOUS errors that the officials missed, but these things are still occurring, regularly, whilst some cock in a box looks to see if a bloke's nostril hairs are offside. It's bollocks, it's being implemented to check to see if the wrong rules have been broken.