Do you know of a VPS for an exit?
I have two exits on VPS servers. One is on ITL (https://itldc.com/), and the other one is on CoolHousing using their Virtual Server Lite brand (http://virtualniserverlite.cz/en/). My experience with both hosts has been very good. For the latter, you WILL need a Reduced Exit Policy, and have to remove IRC ports.
I also previously had a VPS with Verelox (https://verelox.com/) when they had unlimited bandwidth, and they allow Tor exit nodes as well.
I don't know about other providers, but a good place to ask for a Tor friendly VPS is vpsBoard (https://vpsboard.com/).
-Neel Chauhan https://www.neelc.org/