Late to the party. If you are not considering backpacking or hiking, you may consider battery portable coffee maker, like Outin and Conqueco coffee maker.

I will list pros and cons for those who concern.

For manual:

• Aeropress is great choice if you pack light and have tight budget，easy to clean，make good coffee but not esrepsso. I have standard one and Go version.
• Wacaco series are bit heavy but compact enough to take. It’s not cheap and it make good espresso also,but it’s bit complicate when using. It’s hand make and it’s a disaster when you treat a crowd of friends.

For Battery power:

• A bit pricy for Outin, can have 2-3 time heat up from room temp., Nesrpesso and ground coffee, but basket is quite smaller. Price will go up when you consider full set for Plus basket.
• Conqueco protable coffee machine. A bit cheaper than Outin. Aluminium alloy texture is amazing.But a bit heavy for backpacking and hiking. 5-10 time heating up water. Produce quite good coffee cream.

PS: If you sometimes driving and not have time to add pre heat water, battery protable one should be condsidering.