Late reply better than never!
No special consideration needed really. I usually toss my 35mm film back in the containers it came in, and those go in a bubble mailer. Your lab will have additional instructions as to what what to include.
Any less than ideal conditions your film will encounter are generally pretty short and won't mess up your film. Don't store film in a hot place, but taking your camera on a beach day doesn't ruin it in one go.
I use Canadian Film Lab for my colour stuff. They do good work, but at a premium though. They're local ish to be so I suggest finding somewhere local that works for you to support.
Try not to be intimidated by the process. It's supposed to be fun, and even though mistakes happen and disappointments are inevitable, learn from them and get that next roll going!
Split boarding! It's a snowboard that splits in half and lets you ski uphill, then snaps back together to ride down. Takes a lot of physical fitness and training for avalanche safety/rescue, but being able to make turns down an untouched wild mountain is an experience like no other. Maybe not super niche but outside of a mountain town probably moreso.
Also, film photography. So special taking pictures of my kid with a camera that's been in three generations of the family. The camera, lenses, everything just so much more tangible and enjoyable. Then developing it on the bathroom with some science magic and holding a physical image at the end gives a sense of a accomplishment that can't be found with a smartphone! Also not super niche, but maybe 1% of people use a proper digital camera instead of just their phone, and maybe less than 1% of those play with film as well.