I'm also just getting started in film/darkroom processing (my quarantine hobby!) so was considering this exact question very recently and did lots of research into various options. Ended up going with Rodinal as my developer and TF-4 as fixer, because I liked the idea of minimizing the number of chemicals needed to start out, and sticking with liquids and a one-shot developer made the most sense while I'm still learning the basics.
The points made about minimizing variables are very well-taken. It took 3 or 4 rolls just to learn to get the film loaded onto a reel without destroying it! Now I'm in the "will I get a single frame on this roll that isn't horribly over- or under-exposed?" phase.
I have plans to move onto making Caffenol and eventually mixing D-76, D-23 and fixer from constituent chemicals, but only once I'm able to get consistent and predictable results. For this part of the learning curve, I'm liking the Rodinal+TF-4 combo a lot.