Previously looked at on the Wiki page:
https://wiki.ircnow.org/index.php?n=Vps.Vps I think this one has some merit, though they don't accept crypto.
https://www.linode.com/ Went the way of the clownflare I'm pretty sure.
A bunch of mainstream ones:
Rackspace: https://www.rackspace.com/
BlueHost: https://www.bluehost.com/
DigitalOcean: https://www.digitalocean.com/
HostGator: https://www.hostgator.com/ Is definitely clownflared, I got a clownflare recraptcha on first visit.
Vultr: https://www.vultr.com/ Luke Smith's favorite? Apparently some people had issues: https://github.com/LukeSmithxyz/emailwiz/issues/172 IDK
Scalahosting: https://www.scalahosting.com
Mochahost: https://mochahost.com
Liquidhost: https://www.liquidweb.com
Ultahost: https://ultahost.com
Ionos: https://www.ionos.com
InterServer: https://www.interserver.net/
Hostwinds: https://www.hostwinds.com/
Hostinger: https://www.hostinger.com
Inmotion Hosting: https://www.inmotionhosting.com/
Hosting.com: https://hosting.com
VPServer: https://www.vpsserver.com/
MythicBeasts: https://www.mythic-beasts.com Apparently they bought VMHaus which shut down.
Kamatera: https://www.kamatera.com/
OVH: https://www.ovhcloud.com/en/
TransIP: https://www.transip.eu/
VPS Mart: https://www.vps-mart.com/
HostShield: https://hostshield.net/
Niche/esoteric or found elsewhere:
HostMyApple: https://www.hostmyapple.com/
MacInCloud: https://www.macincloud.com/
Rentamac: https://rentamac.io/
MNX: https://mnx.io Apparently they bought out part of Joyent (of SmartOS fame, of OpenIndiana fame, an OpenSolaris derivative).
RackNerd: https://racknerd.com I'm told they accept XMR.
FranTech: https://my.frantech.ca/index.php I could be wrong, but I believe IRCNow may use them? I'm told they accept XMR.
Pubnix:
SDF: https://sdf.org/ https://sdf.org/plan9/ Has plan9 offering, seems to be free.
Freeshell: https://freeshell.de You send a postcard in to get access AFAIK.
Domain registrars:
Epik https://www.epik.com/ I don't think they rent VPSs, just "web hosting".
The aforementioned Gandi is also a domain resgistrar.