Canadian immigration is rather straightforward and all avenues are well described on the IRCC website.
If you still have questions I'd recommend the ImmigrationCanada and/or IWantOut subreddits. You can get excellent advice there. If you do your homework and work out the possible avenues applicable to your personal situation they are more than happy to help.
You can keep your costs down by doing a lot of your own research, but there are still shortcuts and pitfalls that you can be made aware of by getting some professional advice. My recommendation is having a paid consult at the beginning of your research, and then near the end before submitting an application. The people of forums can typically only talk about their own experience based on their own profile / program / timing, which will not be exactly like yours. I've cleaned up many people's application messes, (I'm not trying to solicit any business for myself.)
I'm not operating my consultancy anymore or holding the consulting license, I moved on to making software for the industry but don't have anything to offer at the moment. If you're <=32 look up Express Entry for skilled workers. You can email me and I can answer some general questions. blake@blakesieders.ca