I am trying to find the best card for my needs for a 3 month trip all over Europe (mostly western but also czech republic and hungary)

I like the idea of one card for the whole thing, it would be infinitely better than switching numbes every three minutes. Trouble is really want to be able to MMS

I have been reading comparison tables and fine print till I think i'm going insane but i'm finding it hard to find all the info I want. I've tried emailing offical website, only TravelSIM got back to me.

I'm trying to find out what cards will support MMS and what the rates are like.

Does any one have any info on how to get this info easily ?

THanks!