I don't know how many votes you'll get but I want to argument a bit on how both possibilities may work out. Firstly, I think you can set up a patreon (if you want) and do as many ports as you are able to do with the money you make. It doesn't have to be patreon but I believe it's the platform most people know. If you have a preferred way of receiving donos then by all means do as you wish. What I want to say is that some people are more comfortable with paying a bit over a period of time than commissioning for every title they want ported.
Secondly, using the available tools and making our own ports sounds good but I believe there's not that many people with the necessary knowledge about systems and technology (or with the willpower to learn it) so ports won't be coming out as frequent as when you did them. I may be entirely wrong tho. All in all this just means that less ports will be made, but I'm sure there'll be people out there willing to give it a try.
I voted for the community option because I was interested in the process previously (when I approached porting Succulence I found it really hard to deal with the fact that it is a ACE game. It got me into game dev again so... xd) and the more people who understand the tech the better. Maybe one of the few who gets interested can produce ports close to how frequent you did.
P.S.: Thank you so much for the service you provided and I wish you the best for future endeavours.