There are a number of tzedakah sites that send mishloach manot to people in Israel (not **not* matanos laevyonim) and guarantee with a psak from rabbonim that on would be yotzei the mitzvah. One example is the American Zionist Movement
This year, for the 2018 Purim Connection, the American Zionist Movement collaborated with its member organizations, networks and volunteers in Israel on two exciting projects in celebration of Purim. This includes partnerships with our Purim Connection coordinating partner, the Israel Forever Foundation, along with Yad Ezra V’Shulamit, Yashar L’Chayal, AMIT Children and Bnei Akiva.
Mishloach Manot – baskets of treats – were distributed to impoverished
Israeli children and to Israel’s Border Police “Magav” (מִשְׁמַר
הַגְּבוּל) to bring Purim joy to the guardians and citizens of Israel.
The brave men and women of the Border Police guard and protect the
State of Israel and are often the first line of defense against urban
and cross-border terrorism.
Note that while poor children can be considered the recipients of matanos la'aniyim, the border police and those organizations that send to Tzahal would be sending Mishloach Manot. In this case, since you are sending money to the organization, which then buys food for the recipient, it is as if you sent the food via the shaliach.
Mishloach Manot -OU Torah cites:
The posekim of the last several hundred years discuss many differences
in the performance of the mitzvah, depending on the reasoning behind
it. For example, according to Rav Alkabetz, sending non-food items is
acceptable3 because such a package also engenders friendship
3. Some reject non-food ideas for technical reasons. For
example, the Gra (695 on seif 4) learns from Beitzah 14b that “manot”
means specifically food. Some suggest that one can send money because
it can then be used to purchase food. The Be’er Heiteiv (695:6) rules
that non-food items are acceptable as long as there is still time on
Purim day to sell the items and purchase food. See Yechave Da’at 6:45
for a discussion of this.